13129391856

Names of 13129391856

• Cardinal: 13129391856 can be written as Thirteen billion, one hundred twenty-nine million, three hundred ninety-one thousand, eight hundred fifty-six.

Scientific notation

• Scientific notation: 1.3129391856 × 10¹⁰

Factors of 13129391856

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 121025

Divisors of 13129391856

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 17 19 21 24 28 34 38 42 48 51 56 57 68 76 84 102 112 114 119 133 136 152 168 204 228 238 266 272 304 323 336 357 399 408 456 476 532 646 714 798 816 912 952 969 1064 1292 1428 1596 1904 1938 2128 2261 2584 2856 3192 3876 4522 5168 5712 6384 6783 7752 9044 13566 15504 18088 27132 36176 54264 108528 120977 241954 362931 483908 725862 846839 967816 1451724 1693678 1935632 2056609 2298563 2540517 2903448 3387356 4113218 4597126 5081034 5806896 6169827 6774712 6895689 8226436 9194252 10162068 12339654 13549424 13791378 14396263 16089941 16452872 18388504 20324136 24679308 27582756 28792526 32179882 32905744 36777008 39075571 40648272 43188789 48269823 49358616 55165512 57585052 64359764 78151142 86377578 96539646 98717232 110331024 115170104 117226713 128719528 156302284 172755156 193079292 230340208 234453426 257439056 273528997 312604568 345510312 386158584 468906852 547057994 625209136 691020624 772317168 820586991 937813704 1094115988 1641173982 1875627408 2188231976 3282347964 4376463952 6564695928 13129391856
• Sum of all divisors σ(n): 43203663360
• Sum of proper divisors (its aliquot sum) s(n): 30074271504
• 13129391856 is an abundant number, because the sum of its proper divisors (30074271504) is greater than itself. Its abundance is 16944879648

Bases of 13129391856

• Binary: 1100001110100100101001111011110000₂
• Hexadecimal: 0x30E929EF0
• Base-36: 614WFLC

Squares and roots of 13129391856

• 13129391856 squared (13129391856²) is 172380930508399124736
• 13129391856 cubed (13129391856³) is 2263256785146677407906366550016
• The square root of 13129391856 is 114583.5584017183
• The cube root of 13129391856 is 2359.1100647235

Scales and comparisons

• 13,129,391,856 seconds is equal to 417 years, 24 weeks, 4 days, 13 hours, 17 minutes, 36 seconds.
• To count from 1 to 13,129,391,856 would take you about eight hundred thirty-four 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 13129391856 cubic inches would be around 196.6 feet tall.

Recreational maths with 13129391856

• 13129391856 backwards is 65819392131
• 13129391856 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 13129391856's digits is 48
• More coming soon!