31681157807808

Names of 31681157807808

• Cardinal: 31681157807808 can be written as Thirty-one trillion, six hundred eighty-one billion, one hundred fifty-seven million, eight hundred seven thousand, eight hundred eight.

Scientific notation

• Scientific notation: 3.1681157807808 × 10¹³

Factors of 31681157807808

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 18334003366

Divisors of 31681157807808

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 144 192 216 288 432 576 864 1728 18334003361 36668006722 55002010083 73336013444 110004020166 146672026888 165006030249 220008040332 293344053776 330012060498 440016080664 495018090747 586688107552 660024120996 880032161328 990036181494 1173376215104 1320048241992 1760064322656 1980072362988 2640096483984 3520128645312 3960144725976 5280192967968 7920289451952 10560385935936 15840578903904 31681157807808
• Sum of all divisors σ(n): 93136737078960
• Sum of proper divisors (its aliquot sum) s(n): 61455579271152
• 31681157807808 is an abundant number, because the sum of its proper divisors (61455579271152) is greater than itself. Its abundance is 29774421463344

Bases of 31681157807808

• Binary: 111001101000001011000001010000011111011000000₂
• Hexadecimal: 0x1CD058283EC0
• Base-36: B8A4FDIO0

Squares and roots of 31681157807808

• 31681157807808 squared (31681157807808²) is 1003695760043233800265764864
• 31681157807808 cubed (31681157807808³) is 31798243764957481342930948106554631258112
• The square root of 31681157807808 is 5628601.7631209263
• The cube root of 31681157807808 is 31642.2250402185

Scales and comparisons

• 31,681,157,807,808 seconds is equal to 1,007,362 years, 42 weeks, 5 days, 5 hours, 16 minutes, 48 seconds.
• To count from 1 to 31,681,157,807,808 would take you about two million, five hundred eighteen thousand, four hundred seven 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 31681157807808 cubic inches would be around 2636.9 feet tall.

Recreational maths with 31681157807808

• 31681157807808 backwards is 80870875118613
• The number of decimal digits it has is: 14
• The sum of 31681157807808's digits is 63
• More coming soon!