15981425408

Names of 15981425408

• Cardinal: 15981425408 can be written as Fifteen billion, nine hundred eighty-one million, four hundred twenty-five thousand, four hundred eight.

Scientific notation

• Scientific notation: 1.5981425408 × 10¹⁰

Factors of 15981425408

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 856

Divisors of 15981425408

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 8 13 16 26 32 43 52 64 86 104 128 172 181 208 256 344 362 416 559 617 688 724 832 1118 1234 1376 1448 1664 2236 2353 2468 2752 2896 3328 4472 4706 4936 5504 5792 7783 8021 8944 9412 9872 11008 11584 15566 16042 17888 18824 19744 23168 26531 31132 32084 35776 37648 39488 46336 53062 62264 64168 71552 75296 78976 101179 106124 111677 124528 128336 143104 150592 157952 202358 212248 223354 249056 256672 301184 344903 404716 424496 446708 498112 513344 602368 689806 809432 848992 893416 996224 1026688 1379612 1451801 1618864 1697984 1786832 1992448 2053376 2759224 2903602 3237728 3395968 3573664 4802111 5518448 5807204 6475456 6791936 7147328 9604222 11036896 11614408 12950912 14294656 19208444 22073792 23228816 25901824 28589312 38416888 44147584 46457632 62427443 76833776 88295168 92915264 124854886 153667552 185830528 249709772 307335104 371661056 499419544 614670208 998839088 1229340416 1997678176 3995356352 7990712704 15981425408
• Sum of all divisors σ(n): 35404745376
• Sum of proper divisors (its aliquot sum) s(n): 19423319968
• 15981425408 is an abundant number, because the sum of its proper divisors (19423319968) is greater than itself. Its abundance is 3441894560

Bases of 15981425408

• Binary: 1110111000100100010011001100000000₂
• Hexadecimal: 0x3B8913300
• Base-36: 7CAXERK

Squares and roots of 15981425408

• 15981425408 squared (15981425408²) is 255405958071467966464
• 15981425408 cubed (15981425408³) is 4081751267677940839105861517312
• The square root of 15981425408 is 126417.6625634251
• The cube root of 15981425408 is 2518.8666172319

Scales and comparisons

• 15,981,425,408 seconds is equal to 508 years, 8 weeks, 2 days, 4 hours, 50 minutes, 8 seconds.
• To count from 1 to 15,981,425,408 would take you about one thousand and sixteen 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 15981425408 cubic inches would be around 209.9 feet tall.

Recreational maths with 15981425408

• 15981425408 backwards is 80452418951
• The number of decimal digits it has is: 11
• The sum of 15981425408's digits is 47
• More coming soon!