39906215198721

Names of 39906215198721

• Cardinal: 39906215198721 can be written as Thirty-nine trillion, nine hundred six billion, two hundred fifteen million, one hundred ninety-eight thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 3.9906215198721 × 10¹³

Factors of 39906215198721

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 6073378

Divisors of 39906215198721

• Number of divisors d(n): 40
• Complete list of divisors:
  1 3 9 23 27 69 81 207 621 1863 3529 10587 31761 81167 95283 243501 285849 730503 2191509 6069823 6574527 18209469 54628407 139605929 163885221 418817787 491655663 1256453361 3769360083 11308080249 21420405367 64261216101 192783648303 492669323441 578350944909 1478007970323 1735052834727 4434023910969 13302071732907 39906215198721
• Sum of all divisors σ(n): 62222494202880
• Sum of proper divisors (its aliquot sum) s(n): 22316279004159
• 39906215198721 is a deficient number, because the sum of its proper divisors (22316279004159) is less than itself. Its deficiency is 17589936194562

Bases of 39906215198721

• Binary: 1001000100101101100011110010000000000000000001₂
• Hexadecimal: 0x244B63C80001
• Base-36: E58NU6J29

Squares and roots of 39906215198721

• 39906215198721 squared (39906215198721²) is 1592506011486630941520035841
• 39906215198721 cubed (39906215198721³) is 63550887599642351086585764408454857359361
• The square root of 39906215198721 is 6317136.6297335219
• The cube root of 39906215198721 is 34172.7697246599

Scales and comparisons

• 39,906,215,198,721 seconds is equal to 1,268,894 years, 10 weeks, 4 days, 17 hours, 25 minutes, 21 seconds.
• To count from 1 to 39,906,215,198,721 would take you about three million, one hundred seventy-two thousand, two 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 39906215198721 cubic inches would be around 2847.7 feet tall.

Recreational maths with 39906215198721

• 39906215198721 backwards is 12789151260993
• The number of decimal digits it has is: 14
• The sum of 39906215198721's digits is 63
• More coming soon!