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IceyLava108

Double the Last Number

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Double the last number. Note: This thread will get ridiculously filled with huge numbers in about 30 posts.

 

------------------------------

 

1

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2 (I remember this game and your fact about insanely huge numbers will come VERY soon is true! But it'll be in about 15 posts or so)

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I remember this as more of a wager (or parlor trick) than I remember it as a game, but either way, it's fun. :)

 

 

4

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32

 

and nice blue 5

 

Just heard about the "second half of the chessboard" on the radio this week. Basically, 2^32 is huge, but a molehill compared to 2^64.

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64

 

 

Apparently the number of possible chess games is greater than the number of atoms in the universe. Being of small mind and body, I find it difficult to fathom either figure. ;)

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2048

 

(In that case, lemme rephrase: 512 is the last number this thread will ever see which is less than the number of puzzles on my cleverly-titled logic puzzle blog at the time the number was posted. I plan on getting to 1024 eventually.)

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Sixteenthousandthreehoundredandeightyfour.

 

In Finnish, we get to write all the numbers under a million together as one word.

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1048576 - 1 M

 

When I was in school, I memorized the powers till 26, although I really think I should know them till 32 (what with the ubiquitous 4 GB limits on various stuff in the computing world). 24 and 25 look the best, IMO.

 

- Madhav.

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If you think that's geeky, I often work out the sin of 72 degrees algebraically for fun. Even made a video:

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4194304

 

 

Nice symmetrical distribution of fours in this one.

 

No! The last number was 2 sin (2/5 pi)! You were supposed to double that! geodave didn't double the last number, but I decided to ignore that and double his number anyway. Don't ignore me! :[

 

8388608

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let's see.. 6 6 10 10 8 8 6 4 -- that's 67108864 -- right? Sorta did that on the fly.

 

And my pentagon thing was an aside -- duh.

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2123507648

 

 

 

I like how the digits are sort of clustered with low ones at the beginning and higher ones at the end (save for that deviant 5). I think of the 0 as acting as the break between the two classes.

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8494030592

 

 

 

Say someone messed up with this whole doubling thing...at this point, would anyone notice?

 

Well, as a CS geek, I know that 2^31-1=2147483647 is the largest number that an int can hold in Java, so I know 2147483648=2^31 is a power of 2.

 

The number 2123507648, is not a power of 2, so someone must have messed up along the way...

 

Perhaps I can restore the correct sequence...

 

2147483648*2=4294967296.

 

A 10-digit number with only 5 distinct digits (2, 4, 6, 7, 9)! Also, each block of 2 digits in the first number (21, 47, 48, 36, and 48) got perfectly doubled (to 42, 94, 96, 72, and 96) without any carry from the previous block messing them up! What are the odds of that?

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137438953472 hours in the stocks.

 

Not much too interesting about this number other than the ...743...347... bit.

 

Oh, and BitBuster, you are so ubiquitous on these forums that your avatar change made me think I was on a completely different site! :P

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274877906944 +

274877906944 =

549755813888

 

nice run of 8s at the end -- if I did it right.

 

(just trying to get ahead of rock.)

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2,199,023,255,552.

 

Lots of 5s, lots of 2s. I like that.

Calculator time!

68719476736

 

Calculator FAIL....2.1 x 2 not equal to 6.8

 

2,199,023,255,552.x 2 = 4,398,046,511,104

 

3 4s and 3 1s (note -- no apostrophes)

 

4,398,046,511,104 x 2 = 8,796,093,022,208

 

starts and ends with 8s, three 2s in a row

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I guess I had this thread open for a long time before I made that post...

 

 

68719476736

 

68719476736

 

Edit: Those times are too far apart...I guess I didn't see there was another page.

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17592186044416

 

 

BTW, Dave, you know that posting in this thread doesn't add to your post count...right? :)

 

 

 

[immediately thereafter, Dave concentrates his posting energy elsewhere.]

  • Upvote 1

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140737488355328

 

 

I spent five minutes trying to think of something interesting to say about this number. I've got nothing. I'm sorry. I tried.

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^Well, it does have 767 and 656 contained within it (and 474 comes close to fitting into that "pattern"...sort of.).

 

 

562949953421312

 

 

The last 8 digits are marginally interesting, I suppose, if you don't think about it too long.

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I know, Dave. I was trying to make a joke. I guess my error was in thinking that it was funny.

 

 

9007199254740992

 

 

 

Lots of nines.

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I know, Dave. I was trying to make a joke. I guess my error was in thinking that it was funny.

 

 

9007199254740992

 

 

 

Lots of nines.

 

9007199254740992 x2 = 18014398509481984

 

Done in my head...

 

At about 2^320 (2.1359 x 10^96 I think) this will be almost too large for your average calculator.

 

There are 1 x 10^80 atoms in the observable universe. This number will be exceeded at post 266.

 

Bonus points: Type this out as the whole number until we reach X * 10^100.

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144115188075855872

 

Lol :P

 

144,115,188,075,855,872 x2 = 288,230,376,151,711,744

 

For a bit of comparison, the entire global yearly GDP is only (USD) $69,490,000,000,000. That's the value of everything produced in a year, in the entire world.

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1,152,921,504,606,846,796.

 

Add the digits, you get 82; Socialist Action. An indication that this thread is far too unsociable.

Multiply the digits and you get zero. An indication of the amount of friends you will have if you make a mistake.

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2305843009213693592 +

2305843009213693592 =

4611686018427387184

 

My guess is, at this point, there will always be a 0 digit, so multiplying digits will always yield 0.

 

Nice 666 in there -- like a UPC symbol.

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1,152,921,504,606,846,976.

 

You failed us again, micronexer.

2305843009213693952

4611686018427387904

9223372036854775808

BitBuster fixed it, though.

 

147,573,952,589,676,412,928

exactly 6 months after last post...

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1180591620717411303424, or 1.18x10^21 (3sf)

 

This is ~ 2691 times the current age of the Universe in seconds.

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2361183241434822606848, or two three six one one eight three two four one four three four eight two two six zero six eight four eight

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4722366482869645213696, or four sextillion, seven hundred and twenty-two quintillion, three hundred and sixty-six quadrillion, four hundred and eight-two trillion, eight hundred and sixty-nine billion, six hundred and fourty-five million, two hundred and thirteen thousand, six hundred and ninety six.

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18889465931478580854784, or eighteen sextillion, eight hundred and eighty-nine quintillion, four hundred and sixty-five quadrillion, nine hundred and thirty-one trillion, four hundred and seventy-eight billion, five hundred and eighty million, eight hundred and fifty-four thousand, seven hundred and eighty four.

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75557863725914323419136, which is seventy-five sextillion and a bunch of quintillions and quadrillions and other illions, or 276, which is two to the seventy-sixth power. This is the same as 15,111,572,745,182,864,683,827.2 times 5.

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151,115,727,451,828,646,838,272

 

Done with a pen and piece of paper.

 

75557863725914323419136, which is seventy-five sextillion and a bunch of quintillions and quadrillions and other illions, or 276, which is two to the seventy-sixth power. This is the same as 15,111,572,745,182,864,683,827.2 times 5.

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604462909807314587353088, or six hundred and four sextillion, four hundred and sixty-two quintillion, nine hundred and nine quadrillion, eight hundred and seven trillion, three hundred and fourteen billion, five hundred and eighty-seven million, three hundred and fifty-three thousand, eighty-eight.

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4835703278458516698824704 = four septillion, eight hundred and thirty-five sextillion, seven hundred and three quintillion, two hundred and seventy-eight quadrillion, four hundred and fifty-eight trillion, five hundred and sixteen billion, six hundred and ninety-eight million, eight hundred and twenty-four thousand, seven hundred and four = 282.

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: 11 111 :1: :11 11: ::1 1 1 111

: 38 685 626 227 668 133 590 597 632

+ 38 685 626 227 668 133 590 597 632

-----------------------------

= 77 371 252 455 336 267 181 195 264

 

I know it's hard to believe, but some people really still do math like that. Those same people may not necessarily understand scientific notation, and therefore choose to ignore posts which include it.

 

(Colons are there to prevent problems with the formatting)

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: 77 371 252 455 336 267 181 195 264

+ 77 371 252 455 336 267 181 195 264

------------------------------------

:154 742 504 910 672 534 362 390 528

 

I like this format. (Y)

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: 154 742 504 910 672 534 362 390 528

+ 154 742 504 910 672 534 362 390 528

------------------------------------

= 309 485 009 821 345 068 724 781 056

 

 

Am I the only one who does these from left to right?

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I do on occasion, but usually right to left.

 

: 309 485 009 821 345 068 724 781 056

+ 309 485 009 821 345 068 724 781 056

-------------------------------------

: 618 970 019 642 690 137 449 562 112

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... How?

You add the two numbers, then add 1 if the next numbers add to something above 9

 

: 618 970 019 642 690 137 449 562 112

+ 618 970 019 642 690 137 449 562 112

-------------------------------------

: 1 237 940 039 285 380 274 899 124 224

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: 1 237 940 039 285 380 274 899 124 224

+ 1 237 940 039 285 380 274 899 124 224

---------------------------------------

= 2 475 880 078 570 760 549 798 248 448

 

Or, 2 octillion, four hundred and seventy-five septillion, eight hundred and eighty sextillion, seventy-eight quintillion, five hundred and seventy quadrillion, seven hundred and sixty trillion, five hundred and forty-nine billion, seven hundred and ninety-eight million, two hundred and forty-eight thousand, four hundred and forty-eight.

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: 2 475 880 078 570 760 549 798 248 448

+ 2 475 880 078 570 760 549 798 248 448

---------------------------------------

= 4 951 760 157 141 521 099 596 496 896

 

Interesting _96s at the end.

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: 4 951 760 157 141 521 099 596 496 896

+ 4 951 760 157 141 521 099 596 496 896

---------------------------------------

= 9 903 520 314 283 042 199 192 993 792

 

Nine octillion, nine hundred and three septillion, five hundred and twenty sextillion, three hundred and fourteen quintillion, two hundred and eighty-three quadrillion, forty-two trillion, one hundred and ninety-nine billion, one hundred and ninety-two million, nine hundred and ninety-three thousand, seven hundred and ninety-two.

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::: 9 903 520 314 283 042 199 192 993 792

::+9 903 520 314 283 042 199 192 993 792

--------------------------------------------------------

=19 807 040 628 566 084 398 385 987 584

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