31689012902

Names of 31689012902

• Cardinal: 31689012902 can be written as Thirty-one billion, six hundred eighty-nine million, twelve thousand, nine hundred two.

Scientific notation

• Scientific notation: 3.1689012902 × 10¹⁰

Factors of 31689012902

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 15893182

Divisors of 31689012902

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 997 1994 15892183 31784366 15844506451 31689012902
• Sum of all divisors σ(n): 47581198896
• Sum of proper divisors (its aliquot sum) s(n): 15892185994
• 31689012902 is a deficient number, because the sum of its proper divisors (15892185994) is less than itself. Its deficiency is 15796826908

Bases of 31689012902

• Binary: 11101100000110011111111011010100110₂
• Hexadecimal: 0x760CFF6A6
• Base-36: EK2TIUE

Squares and roots of 31689012902

• 31689012902 squared (31689012902²) is 1004193538703122461604
• 31689012902 cubed (31689012902³) is 31821902004068284033455155614808
• The square root of 31689012902 is 178014.0806284717
• The cube root of 31689012902 is 3164.4839971153

Scales and comparisons

• 31,689,012,902 seconds is equal to 1,007 years, 31 weeks, 5 days, 23 hours, 35 minutes, 2 seconds.
• To count from 1 to 31,689,012,902 would take you about two thousand and fifteen 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 31689012902 cubic inches would be around 263.7 feet tall.

Recreational maths with 31689012902

• 31689012902 backwards is 20921098613
• The number of decimal digits it has is: 11
• The sum of 31689012902's digits is 41
• More coming soon!