640439394216960

Names of 640439394216960

• Cardinal: 640439394216960 can be written as Six hundred forty trillion, four hundred thirty-nine billion, three hundred ninety-four million, two hundred sixteen thousand, nine hundred sixty.

Scientific notation

• Scientific notation: 6.4043939421696 × 10¹⁴

Factors of 640439394216960

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 6376925

Divisors of 640439394216960

• Number of divisors d(n): 352
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 64 65 78 80 96 104 120 128 130 156 160 192 195 208 240 256 260 312 320 384 390 416 480 503 512 520 624 640 768 780 832 960 1006 1024 1040 1248 1280 1509 1536 1560 1664 1920 2012 2080 2496 2515 2560 3018 3072 3120 3328 3840 4024 4160 4992 5030 5120 6036 6240 6539 6656 7545 7680 8048 8320 9984 10060 12072 12480 13078 13312 15090 15360 16096 16640 19617 19968 20120 24144 24960 26156 30180 32192 32695 33280 39234 39936 40240 48288 49920 52312 60360 64384 65390 66560 78468 80480 96576 98085 99840 104624 120720 128768 130780 156936 160960 193152 196170 199680 209248 241440 257536 261560 313872 321920 386304 392340 418496 482880 515072 523120 627744 643840 772608 784680 836992 965760 1046240 1255488 1287680 1545216 1569360 1673984 1931520 2092480 2510976 2575360 3138720 3347968 3863040 4184960 5021952 6277440 6376399 6695936 7726080 8369920 10043904 12554880 12752798 16739840 19129197 20087808 25109760 25505596 31881995 33479680 38258394 50219520 51011192 63763990 76516788 82893187 95645985 100439040 102022384 127527980 153033576 165786374 191291970 204044768 248679561 255055960 306067152 331572748 382583940 408089536 414465935 497359122 510111920 612134304 663145496 765167880 816179072 828931870 994718244 1020223840 1224268608 1243397805 1326290992 1530335760 1632358144 1657863740 1989436488 2040447680 2448537216 2486795610 2652581984 3060671520 3207328697 3264716288 3315727480 3978872976 4080895360 4897074432 4973591220 5305163968 6121343040 6414657394 6529432576 6631454960 7957745952 8161790720 9621986091 9794148864 9947182440 10610327936 12242686080 12829314788 13262909920 15915491904 16036643485 16323581440 19243972182 19588297728 19894364880 21220655872 24485372160 25658629576 26525819840 31830983808 32073286970 32647162880 38487944364 39788729760 41695273061 42441311744 48109930455 48970744320 51317259152 53051639680 63661967616 64146573940 76975888728 79577459520 83390546122 84882623488 96219860910 97941488640 102634518304 106103279360 125085819183 127323935232 128293147880 153951777456 159154919040 166781092244 192439721820 205269036608 208476365305 212206558720 250171638366 254647870464 256586295760 307903554912 318309838080 333562184488 384879443640 410538073216 416952730610 424413117440 500343276732 513172591520 615807109824 625429095915 636619676160 667124368976 769758887280 821076146432 833905461220 1000686553464 1026345183040 1231614219648 1250858191830 1273239352320 1334248737952 1539517774560 1642152292864 1667810922440 2001373106928 2052690366080 2463228439296 2501716383660 2668497475904 3079035549120 3284304585728 3335621844880 4002746213856 4105380732160 4926456878592 5003432767320 5336994951808 6158071098240 6671243689760 8005492427712 8210761464320 9852913757184 10006865534640 10673989903616 12316142196480 13342487379520 16010984855424 16421522928640 20013731069280 21347979807232 24632284392960 26684974759040 32021969710848 40027462138560 42695959614464 49264568785920 53369949518080 64043939421696 80054924277120 106739899036160 128087878843392 160109848554240 213479798072320 320219697108480 640439394216960
• Sum of all divisors σ(n): 2210361002035200
• Sum of proper divisors (its aliquot sum) s(n): 1569921607818240
• 640439394216960 is an abundant number, because the sum of its proper divisors (1569921607818240) is greater than itself. Its abundance is 929482213601280

Bases of 640439394216960

• Binary: 10010001100111100111101010100101111010110000000000₂
• Hexadecimal: 0x24679EA97AC00
• Base-36: 6B0LSNNTHC

Squares and roots of 640439394216960

• 640439394216960 squared (640439394216960²) is 410162617664986697891551641600
• 640439394216960 cubed (640439394216960³) is 262684298387806657344321925040560234561536000
• The square root of 640439394216960 is 25306904.0820278923
• The cube root of 640439394216960 is 86197.1048842993

Scales and comparisons

• 640,439,394,216,960 seconds is equal to 20,363,991 years, 37 weeks, 5 days, 14 hours, 56 minutes.
• To count from 1 to 640,439,394,216,960 would take you about fifty million, nine hundred nine thousand, nine hundred seventy-nine 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 640439394216960 cubic inches would be around 7183.1 feet tall.

Recreational maths with 640439394216960

• 640439394216960 backwards is 069612493934046
• The number of decimal digits it has is: 15
• The sum of 640439394216960's digits is 66
• More coming soon!