640137312500

Names of 640137312500

• Cardinal: 640137312500 can be written as Six hundred forty billion, one hundred thirty-seven million, three hundred twelve thousand, five hundred.

Scientific notation

• Scientific notation: 6.401373125 × 10¹¹

Factors of 640137312500

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1539

Divisors of 640137312500

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 4 5 7 10 14 19 20 25 28 35 38 50 53 70 76 95 100 106 125 133 140 175 190 212 250 265 266 350 371 380 475 500 530 532 625 665 700 742 875 950 1007 1060 1250 1325 1330 1453 1484 1750 1855 1900 2014 2375 2500 2650 2660 2906 3125 3325 3500 3710 4028 4375 4750 5035 5300 5812 6250 6625 6650 7049 7265 7420 8750 9275 9500 10070 10171 11875 12500 13250 13300 14098 14530 15625 16625 17500 18550 20140 20342 21875 23750 25175 26500 27607 28196 29060 31250 33125 33250 35245 36325 37100 40684 43750 46375 47500 50350 50855 55214 59375 62500 66250 66500 70490 72650 77009 83125 87500 92750 100700 101710 109375 110428 118750 125875 132500 138035 140980 145300 154018 165625 166250 176225 181625 185500 193249 203420 218750 231875 237500 251750 254275 276070 296875 308036 331250 332500 352450 363250 385045 386498 415625 437500 463750 503500 508550 539063 552140 593750 629375 662500 690175 704900 726500 770090 772996 828125 831250 881125 908125 927500 966245 1017100 1078126 1159375 1187500 1258750 1271375 1380350 1463171 1540180 1656250 1662500 1762250 1816250 1925225 1932490 2078125 2156252 2318750 2517500 2542750 2695315 2760700 2926342 3146875 3312500 3450875 3524500 3632500 3850450 3864980 4156250 4405625 4540625 4637500 4831225 5085500 5390630 5796875 5852684 6293750 6356875 6901750 7315855 7700900 8312500 8811250 9081250 9626125 9662450 10242197 10781260 11593750 12587500 12713750 13476575 13803500 14631710 15734375 17254375 17622500 18162500 19252250 19324900 20484394 22028125 22703125 23187500 24156125 25427500 26953150 29263420 31468750 31784375 34508750 36579275 38504500 40968788 44056250 45406250 48130625 48312250 51210985 53906300 62937500 63568750 67382875 69017500 73158550 86271875 88112500 90812500 96261250 96624500 102421970 110140625 120780625 127137500 134765750 146317100 158921875 172543750 182896375 192522500 204843940 220281250 240653125 241561250 256054925 269531500 317843750 336914375 345087500 365792750 431359375 440562500 481306250 483122500 512109850 603903125 635687500 673828750 731585500 862718750 914481875 962612500 1024219700 1203265625 1207806250 1280274625 1347657500 1684571875 1725437500 1828963750 2406531250 2415612500 2560549250 3019515625 3369143750 3657927500 4572409375 4813062500 5121098500 6039031250 6401373125 6738287500 8422859375 9144818750 12078062500 12802746250 16845718750 18289637500 22862046875 25605492500 32006865625 33691437500 45724093750 64013731250 91448187500 128027462500 160034328125 320068656250 640137312500
• Sum of all divisors σ(n): 1717515515520
• Sum of proper divisors (its aliquot sum) s(n): 1077378203020
• 640137312500 is an abundant number, because the sum of its proper divisors (1077378203020) is greater than itself. Its abundance is 437240890520

Bases of 640137312500

• Binary: 1001010100001011001010000011100011110100₂
• Hexadecimal: 0x950B2838F4
• Base-36: 862P87HW

Squares and roots of 640137312500

• 640137312500 squared (640137312500²) is 409775778854722656250000
• 640137312500 cubed (640137312500³) is 262312765803656489104736328125000000
• The square root of 640137312500 is 800085.8157097899
• The cube root of 640137312500 is 8618.3550302505

Scales and comparisons

• 640,137,312,500 seconds is equal to 20,354 years, 20 weeks, 16 hours, 8 minutes, 20 seconds.
• To count from 1 to 640,137,312,500 would take you about forty thousand, seven hundred eight 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 640137312500 cubic inches would be around 718.2 feet tall.

Recreational maths with 640137312500

• 640137312500 backwards is 005213731046
• The number of decimal digits it has is: 12
• The sum of 640137312500's digits is 32
• More coming soon!