640630728500

Names of 640630728500

• Cardinal: 640630728500 can be written as Six hundred forty billion, six hundred thirty million, seven hundred twenty-eight thousand, five hundred.

Scientific notation

• Scientific notation: 6.406307285 × 10¹¹

Factors of 640630728500

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 386

Divisors of 640630728500

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 4 5 7 10 14 17 20 25 28 34 35 49 50 68 70 85 97 98 100 101 119 125 140 157 170 175 194 196 202 238 245 250 314 340 350 388 404 425 476 485 490 500 505 595 628 679 700 707 785 833 850 875 970 980 1010 1099 1190 1225 1358 1414 1570 1649 1666 1700 1717 1750 1940 2020 2125 2198 2380 2425 2450 2525 2669 2716 2828 2975 3140 3298 3332 3395 3434 3500 3535 3925 4165 4250 4396 4753 4850 4900 4949 5050 5338 5495 5950 6125 6596 6790 6868 7070 7693 7850 8245 8330 8500 8585 9506 9700 9797 9898 10100 10676 10990 11543 11900 12019 12125 12250 12625 13345 13580 14140 14875 15229 15386 15700 15857 16490 16660 16975 17170 17675 18683 19012 19594 19625 19796 20825 21980 23086 23765 24038 24250 24500 24745 25250 26690 27475 29750 30458 30772 31714 32980 33950 34340 35350 37366 38465 39188 39250 41225 41650 42925 46172 47530 48076 48500 48985 49490 50500 53380 54950 57715 59500 60095 60916 63428 66725 67900 68579 70700 74732 76145 76930 78500 79285 80801 82450 83300 84133 84875 85850 88375 93415 95060 97970 98980 104125 106603 109900 110999 115430 118825 120190 123725 130781 133450 137158 137375 152290 153860 158570 161602 164900 166549 168266 169750 171700 176750 186830 192325 195940 206125 208250 213206 214625 221998 230860 237650 240380 244925 247450 258893 261562 266900 269569 274316 274750 288575 300475 304580 317140 323204 333098 333625 336532 339500 342895 353500 373660 380725 384650 396425 404005 412250 416500 420665 426412 429250 443996 467075 475300 480053 489850 494900 517786 523124 533015 539138 549500 554995 577150 594125 600950 618625 653905 666196 667250 685790 746221 761450 769300 776993 792850 808010 824500 832745 841330 858500 934150 960106 961625 979700 1035572 1066030 1078276 1109990 1154300 1165843 1188250 1201900 1224625 1237250 1294465 1307810 1334500 1347845 1371580 1442875 1492442 1502375 1522900 1538129 1553986 1585700 1616020 1665490 1682660 1714475 1812251 1868300 1886983 1903625 1920212 1923250 1982125 2020025 2103325 2132060 2219980 2331686 2335375 2376500 2400265 2449250 2474500 2588930 2615620 2665075 2695690 2774975 2885750 2984884 3004750 3076258 3107972 3269525 3330980 3428950 3624502 3731105 3773966 3807250 3846500 3884965 3964250 4040050 4163725 4206650 4663372 4670750 4800530 4898500 5177860 5330150 5391380 5549950 5771500 5829215 6009500 6152516 6472325 6539050 6739225 6857900 7249004 7462210 7547932 7614500 7690645 7769930 7928500 8080100 8160901 8327450 8413300 8572375 9061255 9341500 9434915 9601060 10100125 10516625 10660300 10766903 11099900 11658430 12001325 12685757 12944650 13078100 13208881 13325375 13478450 13874875 14924420 15381290 15539860 16321802 16347625 16654900 17144750 18122510 18655525 18869830 19424825 20200250 20818625 21033250 21533806 23316860 24002650 25371514 25889300 26148193 26417762 26650750 26956900 27749750 29146075 30762580 32361625 32643604 32695250 33696125 34289500 36245020 37311050 37739660 38453225 38849650 40400500 40804505 41637250 42066500 43067612 45306275 47174575 48005300 50743028 52296386 52835524 53301500 53834515 55499500 58292150 60006625 63428785 64723250 65390500 66044405 67392250 74622100 75368321 76906450 77699300 81609010 83274500 90612550 93277625 94349150 97124125 104592772 107669030 116584300 120013250 126857570 129446500 130740965 132088810 134784500 145730375 150736642 153812900 163218020 181225100 183037351 186555250 188698300 192266125 194248250 204022525 215338060 226531375 235872875 240026500 253715140 261481930 264177620 269172575 291460750 301473284 317143925 330222025 366074702 373110500 376841605 384532250 388496500 408045050 453062750 471745750 522963860 538345150 582921500 634287850 653704825 660444050 732149404 753683210 769064500 816090100 906125500 915186755 943491500 1020112625 1076690300 1268575700 1281261457 1307409650 1320888100 1345862875 1507366420 1585719625 1651110125 1830373510 1884208025 2040225250 2562522914 2614819300 2691725750 3171439250 3268524125 3302220250 3660747020 3768416050 4080450500 4575933775 5125045828 5383451500 6342878500 6406307285 6537048250 6604440500 7536832100 9151867550 9421040125 12812614570 13074096500 18303735100 18842080250 22879668875 25625229140 32031536425 37684160500 45759337750 64063072850 91518675500 128126145700 160157682125 320315364250 640630728500
• Sum of all divisors σ(n): 1769511272256
• Sum of proper divisors (its aliquot sum) s(n): 1128880543756
• 640630728500 is an abundant number, because the sum of its proper divisors (1128880543756) is greater than itself. Its abundance is 488249815256

Bases of 640630728500

• Binary: 1001010100101000100100010010011100110100₂
• Hexadecimal: 0x9528912734
• Base-36: 86AUZTPW

Squares and roots of 640630728500

• 640630728500 squared (640630728500²) is 410407730298440712250000
• 640630728500 cubed (640630728500³) is 262919803243121595902776374125000000
• The square root of 640630728500 is 800394.1082366861
• The cube root of 640630728500 is 8620.5687959859

Scales and comparisons

• 640,630,728,500 seconds is equal to 20,370 years, 3 weeks, 6 days, 12 hours, 8 minutes, 20 seconds.
• To count from 1 to 640,630,728,500 would take you about forty thousand, seven hundred forty 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 640630728500 cubic inches would be around 718.4 feet tall.

Recreational maths with 640630728500

• 640630728500 backwards is 005827036046
• The number of decimal digits it has is: 12
• The sum of 640630728500's digits is 41
• More coming soon!