21387513216726

Names of 21387513216726

• Cardinal: 21387513216726 can be written as Twenty-one trillion, three hundred eighty-seven billion, five hundred thirteen million, two hundred sixteen thousand, seven hundred twenty-six.

Scientific notation

• Scientific notation: 2.1387513216726 × 10¹³

Factors of 21387513216726

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 266

Divisors of 21387513216726

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 3 6 9 18 19 27 38 54 57 61 81 114 122 162 171 181 183 243 342 361 362 366 486 513 543 549 722 1026 1083 1086 1098 1159 1539 1629 1647 2166 2318 3078 3249 3258 3294 3439 3477 3721 4617 4887 4941 6498 6878 6954 7442 9234 9747 9774 9882 10317 10431 11041 11163 14661 14823 19494 20634 20862 22021 22082 22326 29241 29322 29646 30951 31293 32761 33123 33489 43983 44042 58482 61902 62586 65341 65522 66063 66246 66978 70699 87723 87966 92853 93879 98283 99369 100467 130682 132126 141398 175446 185706 187758 196023 196566 198189 198738 200934 209779 212097 278559 281637 294849 298107 301401 392046 396378 419558 424194 557118 563274 588069 589698 594567 596214 602802 622459 629337 636291 673501 835677 884547 894321 904203 1176138 1189134 1244918 1258674 1272582 1343281 1347002 1671354 1764207 1769094 1783701 1788642 1808406 1867377 1888011 1908873 1998421 2020503 2653641 2682963 2686562 3528414 3567402 3734754 3776022 3817746 3985801 3996842 4029843 4041006 5292621 5307282 5351103 5365926 5602131 5664033 5726619 5995263 6061509 7960923 7971602 8059686 10585242 10702206 11204262 11328066 11453238 11826721 11957403 11990526 12089529 12123018 12796519 15877863 15921846 16806393 16992099 17179857 17985789 18184527 23653442 23914806 24179058 25593038 31755726 33612786 33984198 34359714 35480163 35872209 35971578 36268587 36369054 37969999 38389557 50419179 50976297 53957367 54553581 70960326 71744418 72537174 75939998 76779114 100838358 101952594 106440489 107616627 107914734 108805761 109107162 113909997 115168671 121903681 151257537 161872101 163660743 212880978 215233254 217611522 227819994 230337342 243133861 243807362 302515074 319321467 322849881 323744202 326417283 327321486 341729991 345506013 365711043 485616303 486267722 638642934 645699762 652834566 683459982 691012026 721429981 729401583 731422086 957964401 968549643 971232606 1025189973 1036518039 1097133129 1442859962 1458803166 1915928802 1937099286 2050379946 2073036078 2164289943 2188204749 2194266258 2316169939 2873893203 3075569919 3109554117 3291399387 4328579886 4376409498 4632339878 5747786406 6151139838 6219108234 6492869829 6564614247 6582798774 6948509817 9226709757 9874198161 12985739658 13129228494 13897019634 18453419514 19478609487 19693842741 19748396322 20845529451 29622594483 38957218974 39387685482 41691058902 44007228841 58435828461 59081528223 59245188966 62536588353 88014457682 116871656922 118163056446 125073176706 132021686523 175307485383 187609765059 264043373046 350614970766 375219530118 396065059569 562829295177 792130119138 1125658590354 1188195178707 2376390357414 3564585536121 7129171072242 10693756608363 21387513216726
• Sum of all divisors σ(n): 51849801919188
• Sum of proper divisors (its aliquot sum) s(n): 30462288702462
• 21387513216726 is an abundant number, because the sum of its proper divisors (30462288702462) is greater than itself. Its abundance is 9074775485736

Bases of 21387513216726

• Binary: 100110111001110101011001000001011111011010110₂
• Hexadecimal: 0x1373AB20BED6
• Base-36: 7KXAD5RDI

Squares and roots of 21387513216726

• 21387513216726 squared (21387513216726²) is 457425721595629331846159076
• 21387513216726 cubed (21387513216726³) is 9783198666296950016575403811708659905176
• The square root of 21387513216726 is 4624663.5787618109
• The cube root of 21387513216726 is 27757.9100213331

Scales and comparisons

• 21,387,513,216,726 seconds is equal to 680,056 years, 39 weeks, 5 days, 5 hours, 32 minutes, 6 seconds.
• To count from 1 to 21,387,513,216,726 would take you about one million, seven hundred thousand, one hundred forty-one 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 21387513216726 cubic inches would be around 2313.2 feet tall.

Recreational maths with 21387513216726

• 21387513216726 backwards is 62761231578312
• 21387513216726 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21387513216726's digits is 54
• More coming soon!