31390973836872

Names of 31390973836872

• Cardinal: 31390973836872 can be written as Thirty-one trillion, three hundred ninety billion, nine hundred seventy-three million, eight hundred thirty-six thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 3.1390973836872 × 10¹³

Factors of 31390973836872

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1898341498

Divisors of 31390973836872

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 8 12 13 24 26 39 52 53 78 104 106 156 159 212 312 318 424 636 689 1272 1378 2067 2756 4134 5512 8268 16536 1898341427 3796682854 5695024281 7593365708 11390048562 15186731416 22780097124 24678438551 45560194248 49356877102 74035315653 98713754204 100612095631 148070631306 197427508408 201224191262 296141262612 301836286893 402448382524 592282525224 603672573786 804896765048 1207345147572 1307957243203 2414690295144 2615914486406 3923871729609 5231828972812 7847743459218 10463657945624 15695486918436 31390973836872
• Sum of all divisors σ(n): 86108767174080
• Sum of proper divisors (its aliquot sum) s(n): 54717793337208
• 31390973836872 is an abundant number, because the sum of its proper divisors (54717793337208) is greater than itself. Its abundance is 23326819500336

Bases of 31390973836872

• Binary: 111001000110011000111110110000011111001001000₂
• Hexadecimal: 0x1C8CC7D83E48
• Base-36: B4KTBBXOO

Squares and roots of 31390973836872

• 31390973836872 squared (31390973836872²) is 985393238427182413266744384
• 31390973836872 cubed (31390973836872³) is 30932453366498255829964215311412538126848
• The square root of 31390973836872 is 5602764.8386195899
• The cube root of 31390973836872 is 31545.3194439501

Scales and comparisons

• 31,390,973,836,872 seconds is equal to 998,135 years, 45 weeks, 1 day, 10 hours, 41 minutes, 12 seconds.
• To count from 1 to 31,390,973,836,872 would take you about two million, four hundred ninety-five thousand, three hundred thirty-nine 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 31390973836872 cubic inches would be around 2628.8 feet tall.

Recreational maths with 31390973836872

• 31390973836872 backwards is 27863837909313
• The number of decimal digits it has is: 14
• The sum of 31390973836872's digits is 69
• More coming soon!