640354991379690496

Names of 640354991379690496

• Cardinal: 640354991379690496 can be written as Six hundred forty quadrillion, three hundred fifty-four trillion, nine hundred ninety-one billion, three hundred seventy-nine million, six hundred ninety thousand, four hundred ninety-six.

Scientific notation

• Scientific notation: 6.40354991379690496 × 10¹⁷

Factors of 640354991379690496

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 10301823

Divisors of 640354991379690496

• Number of divisors d(n): 352
• Complete list of divisors:
  1 2 4 7 8 13 14 16 26 28 32 52 56 64 91 104 112 128 182 208 224 256 364 416 448 512 709 728 832 896 941 1024 1418 1456 1664 1792 1882 2836 2912 3328 3584 3764 4963 5672 5824 6587 6656 7168 7528 9217 9926 11344 11648 12233 13174 13312 15056 18434 19852 22688 23296 24466 26348 30112 36868 39704 45376 46592 48932 52696 60224 64519 73736 79408 85631 90752 93184 97864 105392 120448 129038 147472 158816 171262 181504 195728 210784 240896 258076 294944 317632 342524 363008 391456 421568 481792 516152 589888 635264 667169 685048 726016 782912 843136 963584 1032304 1179776 1270528 1334338 1370096 1565824 1686272 2064608 2359552 2541056 2668676 2740192 3131648 3372544 4129216 4670183 4719104 5082112 5337352 5480384 6263296 6745088 8258432 8673197 9340366 9438208 10300151 10674704 10960768 12526592 16516864 17346394 18680732 20600302 21349408 21921536 33033728 34692788 37361464 41200604 42698816 43843072 60712379 66067456 69385576 72101057 74722928 82401208 85397632 87686144 121424758 133901963 138771152 144202114 149445856 164802416 170795264 242849516 267803926 277542304 288404228 298891712 329604832 341590528 485699032 535607852 555084608 576808456 597783424 659209664 683181056 937313741 971398064 1071215704 1110169216 1153616912 1195566848 1318419328 1874627482 1942796128 2142431408 2220338432 2307233824 2391133696 2636838656 3749254964 3885592256 4284862816 4440676864 4614467648 4782267392 5273677312 7302807059 7498509928 7771184512 8569725632 8881353728 9228935296 9692442091 10547354624 14605614118 14997019856 15542369024 17139451264 18457870592 19384884182 29211228236 29994039712 31084738048 34278902528 36915741184 38769768364 51119649413 58422456472 59988079424 62169476096 67847094637 68557805056 73831482368 77539536728 94936491767 102239298826 116844912944 119976158848 126001747183 135694189274 137115610112 155079073456 189872983534 204478597652 233689825888 239952317696 252003494366 271388378548 310158146912 379745967068 408957195304 467379651776 479904635392 504006988732 542776757096 620316293824 664555442369 759491934136 817914390608 882012230281 934759303552 959809270784 1008013977464 1085553514192 1240632587648 1329110884738 1518983868272 1635828781216 1764024460562 1869518607104 2016027954928 2171107028384 2481265175296 2658221769476 3037967736544 3271657562432 3528048921124 3739037214208 4032055909856 4342214056768 4962530350592 5316443538952 6075935473088 6543315124864 6871941442519 7056097842248 7478074428416 8064111819712 8684428113536 9925060701184 10632887077904 12151870946176 13086630249728 13743882885038 14112195684496 16128223639424 17368856227072 21265774155808 24303741892352 26173260499456 27487765770076 28224391368992 32256447278848 34737712454144 42531548311616 48103590097633 48607483784704 52346520998912 54975531540152 56448782737984 64512894557696 69475424908288 85063096623232 89335238752747 96207180195266 97214967569408 109951063080304 112897565475968 129025789115392 170126193246464 178670477505494 192414360390532 219902126160608 225795130951936 340252386492928 357340955010988 384828720781064 439804252321216 451590261903872 625346671269229 680504772985856 714681910021976 769657441562128 879608504642432 903180523807744 1250693342538458 1429363820043952 1539314883124256 1759217009284864 2501386685076916 2858727640087904 3078629766248512 3518434018569728 5002773370153832 5717455280175808 6157259532497024 7036868037139456 10005546740307664 11434910560351616 12314519064994048 20011093480615328 22869821120703232 24629038129988096 40022186961230656 45739642241406464 49258076259976192 80044373922461312 91479284482812928 160088747844922624 320177495689845248 640354991379690496
• Sum of all divisors σ(n): 1579387696468968960
• Sum of proper divisors (its aliquot sum) s(n): 939032705089278464
• 640354991379690496 is an abundant number, because the sum of its proper divisors (939032705089278464) is greater than itself. Its abundance is 298677713709587968

Bases of 640354991379690496

• Binary: 100011100010111111110111100011001111010101011011010000000000₂
• Hexadecimal: 0x8E2FF78CF55B400
• Base-36: 4V56WDWNJK74

Squares and roots of 640354991379690496

• 640354991379690496 squared (640354991379690496²) is 410054514984883489441895944752726016
• 640354991379690496 cubed (640354991379690496³) is 262580455408348234199263717333472599644696994367143936
• The square root of 640354991379690496 is 800221838.8545082041
• The cube root of 640354991379690496 is 861933.1810920585

Scales and comparisons

• 640,354,991,379,690,496 seconds is equal to 20,361,307,977 years, 43 weeks, 2 days, 14 hours, 28 minutes, 16 seconds.
• To count from 1 to 640,354,991,379,690,496 would take you about sixty-one billion, eighty-three million, nine hundred twenty-three thousand, nine hundred thirty-three 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 640354991379690496 cubic inches would be around 71827.8 feet tall.

Recreational maths with 640354991379690496

• 640354991379690496 backwards is 694096973199453046
• The number of decimal digits it has is: 18
• The sum of 640354991379690496's digits is 94
• More coming soon!