31307223920

Names of 31307223920

• Cardinal: 31307223920 can be written as Thirty-one billion, three hundred seven million, two hundred twenty-three thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 3.130722392 × 10¹⁰

Factors of 31307223920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 18796

Divisors of 31307223920

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 3709 7418 14836 15073 18545 25963 29672 30146 37090 51926 59344 60292 74180 75365 103852 105511 120584 129815 148360 150730 207704 211022 241168 259630 296720 301460 415408 422044 519260 527555 602920 844088 1038520 1055110 1205840 1688176 2077040 2110220 4220440 8440880 55905757 111811514 223623028 279528785 391340299 447246056 559057570 782680598 894492112 1118115140 1565361196 1956701495 2236230280 3130722392 3913402990 4472460560 6261444784 7826805980 15653611960 31307223920
• Sum of all divisors σ(n): 83215715520
• Sum of proper divisors (its aliquot sum) s(n): 51908491600
• 31307223920 is an abundant number, because the sum of its proper divisors (51908491600) is greater than itself. Its abundance is 20601267680

Bases of 31307223920

• Binary: 11101001010000011100101001101110000₂
• Hexadecimal: 0x74A0E5370
• Base-36: EDRIGKW

Squares and roots of 31307223920

• 31307223920 squared (31307223920²) is 980142269577020166400
• 31307223920 cubed (31307223920³) is 30685533507104774035840460288000
• The square root of 31307223920 is 176938.4749566923
• The cube root of 31307223920 is 3151.7240556311

Scales and comparisons

• 31,307,223,920 seconds is equal to 995 years, 24 weeks, 4 days, 3 hours, 5 minutes, 20 seconds.
• To count from 1 to 31,307,223,920 would take you about one thousand, nine hundred ninety 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 31307223920 cubic inches would be around 262.6 feet tall.

Recreational maths with 31307223920

• 31307223920 backwards is 02932270313
• The number of decimal digits it has is: 11
• The sum of 31307223920's digits is 32
• More coming soon!