31990731318

Names of 31990731318

• Cardinal: 31990731318 can be written as Thirty-one billion, nine hundred ninety million, seven hundred thirty-one thousand, three hundred eighteen.

Scientific notation

• Scientific notation: 3.1990731318 × 10¹⁰

Factors of 31990731318

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 39663

Divisors of 31990731318

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 21 26 39 42 63 78 91 117 126 182 234 273 499 546 819 998 1497 1638 2994 3493 4491 6487 6986 8982 10479 12974 19461 20958 31437 38922 39139 45409 58383 62874 78278 90818 116766 117417 136227 234834 272454 273973 352251 408681 508807 547946 704502 817362 821919 1017614 1526421 1643838 2465757 3052842 3561649 4579263 4931514 7123298 9158526 10684947 19530361 21369894 32054841 39060722 58591083 64109682 117182166 136712527 175773249 253894693 273425054 351546498 410137581 507789386 761684079 820275162 1230412743 1523368158 1777262851 2285052237 2460825486 3554525702 4570104474 5331788553 10663577106 15995365659 31990731318
• Sum of all divisors σ(n): 85481760000
• Sum of proper divisors (its aliquot sum) s(n): 53491028682
• 31990731318 is an abundant number, because the sum of its proper divisors (53491028682) is greater than itself. Its abundance is 21500297364

Bases of 31990731318

• Binary: 11101110010110010111101001000110110₂
• Hexadecimal: 0x772CBD236
• Base-36: EP2GE9I

Squares and roots of 31990731318

• 31990731318 squared (31990731318²) is 1023406890260466017124
• 31990731318 cubed (31990731318³) is 32739534855312479391283471089432
• The square root of 31990731318 is 178859.5295699953
• The cube root of 31990731318 is 3174.4955510965

Scales and comparisons

• 31,990,731,318 seconds is equal to 1,017 years, 10 weeks, 5 days, 2 hours, 15 minutes, 18 seconds.
• To count from 1 to 31,990,731,318 would take you about two thousand and thirty-four 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 31990731318 cubic inches would be around 264.5 feet tall.

Recreational maths with 31990731318

• 31990731318 backwards is 81313709913
• The number of decimal digits it has is: 11
• The sum of 31990731318's digits is 45
• More coming soon!