31912745920

Names of 31912745920

• Cardinal: 31912745920 can be written as Thirty-one billion, nine hundred twelve million, seven hundred forty-five thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 3.191274592 × 10¹⁰

Factors of 31912745920

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 3029

Divisors of 31912745920

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 110 160 176 220 320 352 440 704 880 1760 3011 3520 6022 12044 15055 24088 30110 33121 48176 60220 66242 96352 120440 132484 165605 192704 240880 264968 331210 481760 529936 662420 963520 1059872 1324840 2119744 2649680 5299360 9066121 10598720 18132242 36264484 45330605 72528968 90661210 99727331 145057936 181322420 199454662 290115872 362644840 398909324 498636655 580231744 725289680 797818648 997273310 1450579360 1595637296 1994546620 2901158720 3191274592 3989093240 6382549184 7978186480 15956372960 31912745920
• Sum of all divisors σ(n): 82928152152
• Sum of proper divisors (its aliquot sum) s(n): 51015406232
• 31912745920 is an abundant number, because the sum of its proper divisors (51015406232) is greater than itself. Its abundance is 19102660312

Bases of 31912745920

• Binary: 11101101110001001011101101111000000₂
• Hexadecimal: 0x76E25DBC0
• Base-36: ENS0WCG

Squares and roots of 31912745920

• 31912745920 squared (31912745920²) is 1018423352154476646400
• 31912745920 cubed (31912745920³) is 32500685676300497807136882688000
• The square root of 31912745920 is 178641.3891571603
• The cube root of 31912745920 is 3171.9139102243

Scales and comparisons

• 31,912,745,920 seconds is equal to 1,014 years, 37 weeks, 5 days, 11 hours, 38 minutes, 40 seconds.
• To count from 1 to 31,912,745,920 would take you about two thousand and twenty-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 31912745920 cubic inches would be around 264.3 feet tall.

Recreational maths with 31912745920

• 31912745920 backwards is 02954721913
• The number of decimal digits it has is: 11
• The sum of 31912745920's digits is 43
• More coming soon!