31935821221

Names of 31935821221

• Cardinal: 31935821221 can be written as Thirty-one billion, nine hundred thirty-five million, eight hundred twenty-one thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 3.1935821221 × 10¹⁰

Factors of 31935821221

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 132514022

Divisors of 31935821221

• Number of divisors d(n): 4
• Complete list of divisors:
  1 241 132513781 31935821221
• Sum of all divisors σ(n): 32068335244
• Sum of proper divisors (its aliquot sum) s(n): 132514023
• 31935821221 is a deficient number, because the sum of its proper divisors (132514023) is less than itself. Its deficiency is 31803307198

Bases of 31935821221

• Binary: 11101101111100001011111010110100101₂
• Hexadecimal: 0x76F85F5A5
• Base-36: EO5RHD1

Squares and roots of 31935821221

• 31935821221 squared (31935821221²) is 1019896677059673930841
• 31935821221 cubed (31935821221³) is 32571237942469718603892494176861
• The square root of 31935821221 is 178705.9630258599
• The cube root of 31935821221 is 3172.6782363255

Scales and comparisons

• 31,935,821,221 seconds is equal to 1,015 years, 23 weeks, 6 days, 13 hours, 27 minutes, 1 second.
• To count from 1 to 31,935,821,221 would take you about two thousand and thirty 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 31935821221 cubic inches would be around 264.4 feet tall.

Recreational maths with 31935821221

• 31935821221 backwards is 12212853913
• The number of decimal digits it has is: 11
• The sum of 31935821221's digits is 37
• More coming soon!