13087018813

Names of 13087018813

• Cardinal: 13087018813 can be written as Thirteen billion, eighty-seven million, eighteen thousand, eight hundred thirteen.

Scientific notation

• Scientific notation: 1.3087018813 × 10¹⁰

Factors of 13087018813

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 17757227

Divisors of 13087018813

• Number of divisors d(n): 8
• Complete list of divisors:
  1 11 67 737 17757149 195328639 1189728983 13087018813
• Sum of all divisors σ(n): 14489834400
• Sum of proper divisors (its aliquot sum) s(n): 1402815587
• 13087018813 is a deficient number, because the sum of its proper divisors (1402815587) is less than itself. Its deficiency is 11684203226

Bases of 13087018813

• Binary: 1100001100000011000000111100111101₂
• Hexadecimal: 0x30C0C0F3D
• Base-36: 60FO8CD

Squares and roots of 13087018813

• 13087018813 squared (13087018813²) is 171270061411815928969
• 13087018813 cubed (13087018813³) is 2241414515800100402910374693797
• The square root of 13087018813 is 114398.5087883581
• The cube root of 13087018813 is 2356.5694442981

Scales and comparisons

• 13,087,018,813 seconds is equal to 416 years, 6 weeks, 4 days, 3 hours, 13 seconds.
• To count from 1 to 13,087,018,813 would take you about eight hundred thirty-two 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 13087018813 cubic inches would be around 196.4 feet tall.

Recreational maths with 13087018813

• 13087018813 backwards is 31881078031
• The number of decimal digits it has is: 11
• The sum of 13087018813's digits is 40
• More coming soon!