640837390438063

Names of 640837390438063

• Cardinal: 640837390438063 can be written as Six hundred forty trillion, eight hundred thirty-seven billion, three hundred ninety million, four hundred thirty-eight thousand and sixty-three.

Scientific notation

• Scientific notation: 6.40837390438063 × 10¹⁴

Factors of 640837390438063

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 964

Divisors of 640837390438063

• Number of divisors d(n): 96
• Complete list of divisors:
  1 7 13 37 91 169 259 481 907 1183 1369 2197 3367 6253 6349 9583 11791 15379 17797 33559 43771 50653 81289 82537 124579 153283 231361 234913 354571 436267 569023 658489 822649 1072981 1241683 1619527 1992679 3007693 3053869 4609423 5671471 5758543 8560357 8691781 10694437 13948753 16141879 21053851 30438013 39700297 45942271 59922499 73729123 74861059 111284641 112993153 139027681 209844427 213066091 321595897 395694169 516103861 597249523 778992487 973193767 1126206481 1468910989 1807359853 2727977551 2769859183 4180746661 5144024197 7764243799 7883445367 12651518971 14640684253 19095842857 36008169379 41669639797 54349706593 66872314561 100935169387 102484789771 190328895289 291687478579 468106201927 541705317361 706546185709 1332302267023 2474275638757 3791937221527 7042169125693 17319929471299 49295183879851 91548198634009 640837390438063
• Sum of all divisors σ(n): 816328146076800
• Sum of proper divisors (its aliquot sum) s(n): 175490755638737
• 640837390438063 is a deficient number, because the sum of its proper divisors (175490755638737) is less than itself. Its deficiency is 465346634799326

Bases of 640837390438063

• Binary: 10010001101101011010010101000001000000111010101111₂
• Hexadecimal: 0x246D695040EAF
• Base-36: 6B5OMSC33J

Squares and roots of 640837390438063

• 640837390438063 squared (640837390438063²) is 410672560983466399343039191969
• 640837390438063 cubed (640837390438063³) is 263174332305160894589791191744532698461516047
• The square root of 640837390438063 is 25314766.2528821903
• The cube root of 640837390438063 is 86214.9566999691

Scales and comparisons

• 640,837,390,438,063 seconds is equal to 20,376,646 years, 40 weeks, 2 days, 8 hours, 47 minutes, 43 seconds.
• To count from 1 to 640,837,390,438,063 would take you about fifty million, nine hundred forty-one thousand, six hundred sixteen 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 640837390438063 cubic inches would be around 7184.6 feet tall.

Recreational maths with 640837390438063

• 640837390438063 backwards is 360834093738046
• The number of decimal digits it has is: 15
• The sum of 640837390438063's digits is 64
• More coming soon!