20013949457893818

Names of 20013949457893818

• Cardinal: 20013949457893818 can be written as Twenty quadrillion, thirteen trillion, nine hundred forty-nine billion, four hundred fifty-seven million, eight hundred ninety-three thousand, eight hundred eighteen.

Scientific notation

• Scientific notation: 2.0013949457893818 × 10¹⁶

Factors of 20013949457893818

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 79

Divisors of 20013949457893818

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 42 49 63 67 98 126 134 147 201 294 343 402 441 469 603 686 882 938 1029 1206 1407 2058 2401 2814 3087 3283 4221 4489 4802 6174 6566 7203 8442 8978 9849 13467 14406 16807 19698 21609 22981 26934 29547 31423 33614 40401 43218 45962 50421 59094 62846 68943 80802 94269 100842 117649 137886 151263 160867 188538 206829 219961 235298 282807 300763 302526 321734 352947 413658 439922 482601 565614 601526 659883 705894 823543 902289 965202 1058841 1126069 1319766 1447803 1539727 1647086 1804578 1979649 2105341 2117682 2252138 2470629 2706867 2895606 3079454 3378207 3959298 4210682 4619181 4941258 5413734 6316023 6756414 7411887 7882483 9238362 10134621 10778089 12632046 13857543 14737387 14823774 15764966 18948069 20151121 20269242 21556178 23647449 27715086 29474774 32334267 37896138 40302242 44212161 47294898 55177381 60453363 64668534 70942347 75446623 88424322 97002801 103161709 110354762 120906726 132636483 141057847 141884694 150893246 165532143 181360089 194005602 206323418 226339869 265272966 282115694 309485127 331064286 362720178 423173541 452679738 496596429 528126361 618970254 679019607 722131963 846347082 928455381 987404929 993192858 1056252722 1269520623 1350125107 1358039214 1444263926 1584379083 1856910762 1974809858 2166395889 2539041246 2700250214 2962214787 3168758166 3696884527 4050375321 4332791778 4753137249 5054923741 5924429574 6499187667 6911834503 7393769054 8100750642 8886644361 9450875749 9506274498 10109847482 11090653581 12151125963 12998375334 13823669006 15164771223 17773288722 18901751498 20735503509 22181307162 24302251926 28352627247 30329542446 33271960743 35384466187 41471007018 45494313669 48382841521 56705254494 62206510527 66156130243 66543921486 70768932374 85057881741 90988627338 96765683042 106153398561 124413021054 132312260486 145148524563 170115763482 198468390729 212306797122 247691263309 290297049126 318460195683 338679890647 396936781458 435445573689 463092911701 495382526618 595405172187 636920391366 677359781294 743073789927 870891147378 926185823402 1016039671941 1190810344374 1389278735103 1486147579854 2032079343882 2229221369781 2370759234529 2778557470206 3048119015823 3241650381907 4167836205309 4458442739562 4741518469058 6096238031646 6483300763814 7112277703587 8335672410618 9724951145721 14224555407174 16595314641703 19449902291442 21336833110761 22691552673349 29174853437163 33190629283406 42673666221522 45383105346698 49785943925109 58349706874326 68074658020047 99571887850218 136149316040094 149357831775327 158840868713443 204223974060141 298715663550654 317681737426886 408447948120282 476522606140329 953045212280658 1111886080994101 1429567818420987 2223772161988202 2859135636841974 3335658242982303 6671316485964606 10006974728946909 20013949457893818
• Sum of all divisors σ(n): 51357335301417600
• Sum of proper divisors (its aliquot sum) s(n): 31343385843523782
• 20013949457893818 is an abundant number, because the sum of its proper divisors (31343385843523782) is greater than itself. Its abundance is 11329436385629964

Bases of 20013949457893818

• Binary: 1000111000110101001010010111011111111011000100110111010₂
• Hexadecimal: 0x471A94BBFD89BA
• Base-36: 5H2CPGAD96I

Squares and roots of 20013949457893818

• 20013949457893818 squared (20013949457893818²) is 400558172903128251401312562617124
• 20013949457893818 cubed (20013949457893818³) is 8016751027429501885722587339089285770794980539432
• The square root of 20013949457893818 is 141470666.4220318785
• The cube root of 20013949457893818 is 271504.8547502713

Scales and comparisons

• 20,013,949,457,893,818 seconds is equal to 636,381,685 years, 28 weeks, 4 days, 10 hours, 30 minutes, 18 seconds.
• To count from 1 to 20,013,949,457,893,818 would take you about one billion, nine hundred nine million, one hundred forty-five thousand and fifty-six 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 20013949457893818 cubic inches would be around 22625.4 feet tall.

Recreational maths with 20013949457893818

• 20013949457893818 backwards is 81839875494931002
• The number of decimal digits it has is: 17
• The sum of 20013949457893818's digits is 81
• More coming soon!