13859239821

Names of 13859239821

• Cardinal: 13859239821 can be written as Thirteen billion, eight hundred fifty-nine million, two hundred thirty-nine thousand, eight hundred twenty-one.

Scientific notation

• Scientific notation: 1.3859239821 × 10¹⁰

Factors of 13859239821

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1129

Divisors of 13859239821

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 7 21 47 49 141 147 329 343 509 563 987 1029 1527 1689 2303 3563 3941 6909 10689 11823 16121 23923 24941 26461 27587 48363 71769 74823 79383 82761 167461 174587 185227 193109 286567 502383 523761 555681 579327 859701 1172227 1296589 2005969 3516681 3889767 6017907 8205589 9076123 13468649 14041783 24616767 27228369 40405947 42125349 94280543 98292481 282841629 294877443 659963801 1979891403 4619746607 13859239821
• Sum of all divisors σ(n): 22090752000
• Sum of proper divisors (its aliquot sum) s(n): 8231512179
• 13859239821 is a deficient number, because the sum of its proper divisors (8231512179) is less than itself. Its deficiency is 5627727642

Bases of 13859239821

• Binary: 1100111010000100110011011110001101₂
• Hexadecimal: 0x33A13378D
• Base-36: 6D7FLVX

Squares and roots of 13859239821

• 13859239821 squared (13859239821²) is 192078528415992112041
• 13859239821 cubed (13859239821³) is 2662062389781997932420520784661
• The square root of 13859239821 is 117725.2726520521
• The cube root of 13859239821 is 2402.0376110623

Scales and comparisons

• 13,859,239,821 seconds is equal to 440 years, 35 weeks, 2 days, 20 hours, 50 minutes, 21 seconds.
• To count from 1 to 13,859,239,821 would take you about eight hundred eighty-one 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 13859239821 cubic inches would be around 200.2 feet tall.

Recreational maths with 13859239821

• 13859239821 backwards is 12893295831
• The number of decimal digits it has is: 11
• The sum of 13859239821's digits is 51
• More coming soon!