640827985252

Names of 640827985252

• Cardinal: 640827985252 can be written as Six hundred forty billion, eight hundred twenty-seven million, nine hundred eighty-five thousand, two hundred fifty-two.

Scientific notation

• Scientific notation: 6.40827985252 × 10¹¹

Factors of 640827985252

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 162

Divisors of 640827985252

• Number of divisors d(n): 252
• Complete list of divisors:
  1 2 4 7 13 14 26 28 31 49 52 62 91 98 109 124 182 196 217 218 343 364 403 434 436 637 686 763 806 868 961 1274 1372 1417 1519 1526 1612 1922 2401 2548 2821 2834 3038 3052 3379 3844 4459 4802 5341 5642 5668 6076 6727 6758 8918 9604 9919 10633 10682 11284 12493 13454 13516 16807 17836 19747 19838 21266 21364 23653 24986 26908 31213 33614 37387 39494 39676 42532 43927 47089 47306 49972 62426 67228 69433 74431 74774 78988 87451 87854 94178 94612 104749 117649 124852 138229 138866 148862 149548 165571 174902 175708 188356 209498 218491 235298 261709 276458 277732 297724 307489 329623 331142 349804 418996 436982 470596 486031 521017 523418 552916 612157 614978 659246 662284 733243 873964 967603 972062 1042034 1046836 1158997 1224314 1229956 1318492 1361737 1466486 1529437 1831963 1935206 1944124 2084068 2152423 2307361 2317994 2448628 2723474 2932972 3058874 3402217 3647119 3663926 3870412 4285099 4304846 4614722 4635988 5132701 5446948 6117748 6773221 6804434 7294238 7327852 8112979 8570198 8609692 9229444 9532159 10265402 12823741 13546442 13608868 14588476 15066961 16151527 16225958 17140396 19064318 20530804 23815519 25647482 27092884 29995693 30133922 32303054 32451916 35928907 38128636 47412547 47631038 51294964 56790853 59991386 60267844 64606108 66725113 71857814 94825094 95262076 105468727 113060689 113581706 119982772 133450226 143715628 166708633 189650188 209969851 210937454 226121378 227163412 251502349 266900452 333417266 397535971 419939702 421874908 452242756 467075791 503004698 666834532 738281089 795071942 839879404 934151582 1006009396 1469788957 1476562178 1590143884 1760516443 1868303164 2939577914 2953124356 3269530537 3521032886 5167967623 5879155828 6539061074 7042065772 10335935246 12323615101 13078122148 20671870492 22886713759 24647230202 45773427518 49294460404 91546855036 160206996313 320413992626 640827985252
• Sum of all divisors σ(n): 1469273046780
• Sum of proper divisors (its aliquot sum) s(n): 828445061528
• 640827985252 is an abundant number, because the sum of its proper divisors (828445061528) is greater than itself. Its abundance is 187617076276

Bases of 640827985252

• Binary: 1001010100110100010100110000110101100100₂
• Hexadecimal: 0x9534530D64
• Base-36: 86E4FQ04

Squares and roots of 640827985252

• 640827985252 squared (640827985252²) is 410660506682137529503504
• 640827985252 cubed (640827985252³) is 263162745119679676208507176194323008
• The square root of 640827985252 is 800517.3235177361
• The cube root of 640827985252 is 8621.4534922833

Scales and comparisons

• 640,827,985,252 seconds is equal to 20,376 years, 18 weeks, 13 hours, 40 minutes, 52 seconds.
• To count from 1 to 640,827,985,252 would take you about forty thousand, seven hundred fifty-two years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 640827985252 cubic inches would be around 718.5 feet tall.

Recreational maths with 640827985252

• 640827985252 backwards is 252589728046
• The number of decimal digits it has is: 12
• The sum of 640827985252's digits is 58
• More coming soon!