640747331406

Names of 640747331406

• Cardinal: 640747331406 can be written as Six hundred forty billion, seven hundred forty-seven million, three hundred thirty-one thousand, four hundred six.

Scientific notation

• Scientific notation: 6.40747331406 × 10¹¹

Factors of 640747331406

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 538

Divisors of 640747331406

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 21 26 39 42 63 78 79 91 117 126 127 158 182 234 237 254 273 307 381 474 546 553 614 711 762 819 889 921 1027 1106 1143 1422 1638 1651 1659 1778 1842 2054 2149 2286 2667 2763 3081 3302 3318 3991 4298 4953 4977 5334 5526 6162 6447 7189 7982 8001 9243 9906 9954 10033 11557 11973 12894 14378 14859 16002 16129 18486 19341 20066 21567 23114 23946 24253 27937 29718 30099 32258 34671 35919 38682 38989 43134 48387 48506 55874 60198 64701 69342 70231 71838 72759 77978 83811 90297 96774 104013 112903 116967 129402 130429 140462 145161 145518 167622 169771 180594 208026 209677 210693 218277 225806 233934 251433 260858 272923 290322 315289 338709 339542 350901 391287 419354 421386 436554 502866 506857 509313 545846 629031 630578 632079 677418 701802 782574 818769 913003 945867 1013714 1016127 1018626 1173861 1258062 1264158 1274191 1467739 1520571 1527939 1637538 1826006 1887093 1891734 2032254 2207023 2347722 2456307 2548382 2739009 2837601 2935478 3041142 3055878 3080131 3547999 3774186 3822573 4403217 4414046 4561713 4912614 4951603 5478018 5675202 6160262 6621069 7095998 7645146 8217027 8806434 8919337 9123426 9240393 9903206 10643997 11467719 13209651 13242138 14854809 16434054 16564483 17838674 18480786 19863207 21287994 21560917 22935438 26419302 26758011 27721179 29709618 31931991 33128966 34661221 39726414 40041703 43121834 44564427 49693449 53516022 55442358 63863982 64370839 64682751 69322442 80083406 80274033 89128854 99386898 103983663 115951381 120125109 128741678 129365502 149080347 160548066 193112517 194048253 207967326 231902762 240250218 280291921 298160694 311950989 347854143 360375327 386225034 388096506 391176637 450595873 560583842 579337551 623901978 695708286 720750654 782353274 840875763 901191746 1043562429 1158675102 1173529911 1351787619 1681751526 2087124858 2347059822 2522627289 2703575238 2738236459 3520589733 4055362857 5045254578 5085296281 5476472918 7041179466 8110725714 8214709377 10170592562 15255888843 16429418754 24644128131 30511777686 35597073967 45767666529 49288256262 71194147934 91535333058 106791221901 213582443802 320373665703 640747331406
• Sum of all divisors σ(n): 1749700592640
• Sum of proper divisors (its aliquot sum) s(n): 1108953261234
• 640747331406 is an abundant number, because the sum of its proper divisors (1108953261234) is greater than itself. Its abundance is 468205929828

Bases of 640747331406

• Binary: 1001010100101111100001000101111101001110₂
• Hexadecimal: 0x952F845F4E
• Base-36: 86CSF13I

Squares and roots of 640747331406

• 640747331406 squared (640747331406²) is 410557142703910393936836
• 640747331406 cubed (640747331406³) is 263063393577202908115973869523071416
• The square root of 640747331406 is 800466.9458547305
• The cube root of 640747331406 is 8621.0917818231

Scales and comparisons

• 640,747,331,406 seconds is equal to 20,373 years, 40 weeks, 5 days, 1 hour, 50 minutes, 6 seconds.
• To count from 1 to 640,747,331,406 would take you about forty thousand, seven hundred forty-seven 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 640747331406 cubic inches would be around 718.4 feet tall.

Recreational maths with 640747331406

• 640747331406 backwards is 604133747046
• The number of decimal digits it has is: 12
• The sum of 640747331406's digits is 45
• More coming soon!