20478877128384642

Names of 20478877128384642

• Cardinal: 20478877128384642 can be written as Twenty quadrillion, four hundred seventy-eight trillion, eight hundred seventy-seven billion, one hundred twenty-eight million, three hundred eighty-four thousand, six hundred forty-two.

Scientific notation

• Scientific notation: 2.0478877128384642 × 10¹⁶

Factors of 20478877128384642

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 19704

Divisors of 20478877128384642

• Number of divisors d(n): 162
• Complete list of divisors:
  1 2 3 6 9 11 18 22 33 66 99 121 157 198 242 314 363 471 726 942 1089 1413 1727 2178 2826 3454 5181 10362 15543 18997 19531 24649 31086 37994 39062 49298 56991 58593 73947 113982 117186 147894 170973 175779 214841 221841 271139 341946 351558 429682 443682 542278 644523 813417 1289046 1626834 1933569 2363251 2440251 2982529 3066367 3867138 4726502 4880502 5965058 6132734 7089753 8947587 9199101 14179506 17895174 18398202 21269259 26842761 27597303 33730037 42538518 53685522 55194606 67460074 101190111 202380222 303570333 371030407 381459961 481419619 607140666 742060814 762919922 962839238 1113091221 1144379883 1444258857 2226182442 2288759766 2888517714 3339273663 3433139649 4196059571 4332776571 5295615809 6678547326 6866279298 8392119142 8665553142 10591231618 12588178713 15886847427 25176357426 31773694854 37764536139 46156655281 47660542281 58251773899 59889213877 75529072278 92313310562 95321084562 116503547798 119778427754 138469965843 174755321697 179667641631 276939931686 349510643394 359335283262 415409897529 524265965091 539002924893 658781352647 830819795058 1048531930182 1078005849786 1317562705294 1976344057941 3952688115882 5929032173823 7246594879117 9402606578689 11858064347646 14493189758234 18805213157378 21739784637351 28207819736067 43479569274702 56415639472134 65219353912053 84623459208201 103428672365579 130438707824106 169246918416402 206857344731158 310286017096737 620572034193474 930858051290211 1137715396021369 1861716102580422 2275430792042738 3413146188064107 6826292376128214 10239438564192321 20478877128384642
• Sum of all divisors σ(n): 49086457567648137
• Sum of proper divisors (its aliquot sum) s(n): 28607580439263495
• 20478877128384642 is an abundant number, because the sum of its proper divisors (28607580439263495) is greater than itself. Its abundance is 8128703310878853

Bases of 20478877128384642

• Binary: 1001000110000010110111000100100101000101110000010000010₂
• Hexadecimal: 0x48C16E24A2E082
• Base-36: 5LN5M9XAV0I

Squares and roots of 20478877128384642

• 20478877128384642 squared (20478877128384642²) is 419384408439475600896684301468164
• 20478877128384642 cubed (20478877128384642³) is 8588521769992299913148141206453143002838309537288
• The square root of 20478877128384642 is 143104427.3542389115
• The cube root of 20478877128384642 is 273591.1511595585

Scales and comparisons

• 20,478,877,128,384,642 seconds is equal to 651,164,947 years, 18 weeks, 3 days, 18 hours, 50 minutes, 42 seconds.
• To count from 1 to 20,478,877,128,384,642 would take you about one billion, nine hundred fifty-three million, four hundred ninety-four thousand, eight hundred forty-two 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 20478877128384642 cubic inches would be around 22799.3 feet tall.

Recreational maths with 20478877128384642

• 20478877128384642 backwards is 24648382177887402
• The number of decimal digits it has is: 17
• The sum of 20478877128384642's digits is 81
• More coming soon!