81998056476

Names of 81998056476

• Cardinal: 81998056476 can be written as Eighty-one billion, nine hundred ninety-eight million, fifty-six thousand, four hundred seventy-six.

Scientific notation

• Scientific notation: 8.1998056476 × 10¹⁰

Factors of 81998056476

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 11977

Divisors of 81998056476

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 28 31 36 42 49 62 63 84 93 98 124 126 127 147 186 196 217 252 254 279 294 372 381 434 441 508 558 588 651 762 868 882 889 1116 1143 1302 1519 1524 1764 1778 1953 2286 2604 2667 3038 3556 3906 3937 4557 4572 5334 6076 6223 7812 7874 8001 9114 10668 11807 11811 12446 13671 15748 16002 18228 18669 23614 23622 24892 27342 27559 32004 35421 35433 37338 47228 47244 54684 55118 56007 70842 70866 74676 82649 82677 106263 110236 112014 141684 141732 165298 165354 192913 212526 224028 247947 248031 330596 330708 366017 385826 425052 495894 496062 578543 578739 732034 743841 771652 991788 992124 1098051 1157086 1157478 1464068 1487682 1499489 1735629 1736217 2196102 2314172 2314956 2562119 2975364 2998978 3294153 3471258 3472434 4392204 4498467 5124238 5206887 5997956 6588306 6942516 6944868 7686357 8996934 10248476 10413774 10496423 13176612 13495401 15372714 17934833 17993868 20827548 20992846 23059071 26990802 30745428 31489269 35869666 41985692 46118142 46484159 53804499 53981604 62978538 71739332 73474961 92236284 92968318 94467807 107608998 125957076 139452477 146949922 161413497 185936636 188935614 215217996 220424883 278904954 293899844 322826994 325389113 377871228 418357431 440849766 557809908 645653988 650778226 661274649 836714862 881699532 976167339 1301556452 1322549298 1673429724 1952334678 2277723791 2645098596 2928502017 3904669356 4555447582 5857004034 6833171373 9110895164 11714008068 13666342746 20499514119 27332685492 40999028238 81998056476
• Sum of all divisors σ(n): 250872201216
• Sum of proper divisors (its aliquot sum) s(n): 168874144740
• 81998056476 is an abundant number, because the sum of its proper divisors (168874144740) is greater than itself. Its abundance is 86876088264

Bases of 81998056476

• Binary: 1001100010111011101110000110000011100₂
• Hexadecimal: 0x1317770C1C
• Base-36: 11O3IXB0

Squares and roots of 81998056476

• 81998056476 squared (81998056476²) is 6723681265841285538576
• 81998056476 cubed (81998056476³) is 551328796163076901244596924618176
• The square root of 81998056476 is 286353.0277053133
• The cube root of 81998056476 is 4344.4471619037

Scales and comparisons

• 81,998,056,476 seconds is equal to 2,607 years, 14 weeks, 5 days, 13 hours, 54 minutes, 36 seconds.
• To count from 1 to 81,998,056,476 would take you about five thousand, two hundred fourteen 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 81998056476 cubic inches would be around 362 feet tall.

Recreational maths with 81998056476

• 81998056476 backwards is 67465089918
• 81998056476 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81998056476's digits is 63
• More coming soon!