13137721021

Names of 13137721021

• Cardinal: 13137721021 can be written as Thirteen billion, one hundred thirty-seven million, seven hundred twenty-one thousand and twenty-one.

Scientific notation

• Scientific notation: 1.3137721021 × 10¹⁰

Factors of 13137721021

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 15443

Divisors of 13137721021

• Number of divisors d(n): 8
• Complete list of divisors:
  1 227 7529 7687 1709083 1744949 57875423 13137721021
• Sum of all divisors σ(n): 13199065920
• Sum of proper divisors (its aliquot sum) s(n): 61344899
• 13137721021 is a deficient number, because the sum of its proper divisors (61344899) is less than itself. Its deficiency is 13076376122

Bases of 13137721021

• Binary: 1100001111000100011011011010111101₂
• Hexadecimal: 0x30F11B6BD
• Base-36: 619UYF1

Squares and roots of 13137721021

• 13137721021 squared (13137721021²) is 172599713625625282441
• 13137721021 cubed (13137721021³) is 2267566885917957397394187892261
• The square root of 13137721021 is 114619.8980151353
• The cube root of 13137721021 is 2359.6088251517

Scales and comparisons

• 13,137,721,021 seconds is equal to 417 years, 38 weeks, 2 days, 22 hours, 57 minutes, 1 second.
• To count from 1 to 13,137,721,021 would take you about eight hundred thirty-five 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 13137721021 cubic inches would be around 196.6 feet tall.

Recreational maths with 13137721021

• 13137721021 backwards is 12012773131
• The number of decimal digits it has is: 11
• The sum of 13137721021's digits is 28
• More coming soon!