21037506331

Names of 21037506331

• Cardinal: 21037506331 can be written as Twenty-one billion, thirty-seven million, five hundred six thousand, three hundred thirty-one.

Scientific notation

• Scientific notation: 2.1037506331 × 10¹⁰

Factors of 21037506331

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 3632332

Divisors of 21037506331

• Number of divisors d(n): 4
• Complete list of divisors:
  1 5801 3626531 21037506331
• Sum of all divisors σ(n): 21041138664
• Sum of proper divisors (its aliquot sum) s(n): 3632333
• 21037506331 is a deficient number, because the sum of its proper divisors (3632333) is less than itself. Its deficiency is 21033873998

Bases of 21037506331

• Binary: 10011100101111011101101111100011011₂
• Hexadecimal: 0x4E5EEDF1B
• Base-36: 9NX6RRV

Squares and roots of 21037506331

• 21037506331 squared (21037506331²) is 442576672626865081561
• 21037506331 cubed (21037506331³) is 9310709552340588554022368862691
• The square root of 21037506331 is 145043.1188681489
• The cube root of 21037506331 is 2760.5656935317

Scales and comparisons

• 21,037,506,331 seconds is equal to 668 years, 48 weeks, 1 day, 15 hours, 45 minutes, 31 seconds.
• To count from 1 to 21,037,506,331 would take you about one thousand, three hundred thirty-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 21037506331 cubic inches would be around 230 feet tall.

Recreational maths with 21037506331

• 21037506331 backwards is 13360573012
• The number of decimal digits it has is: 11
• The sum of 21037506331's digits is 31
• More coming soon!