21138955478190

Names of 21138955478190

• Cardinal: 21138955478190 can be written as Twenty-one trillion, one hundred thirty-eight billion, nine hundred fifty-five million, four hundred seventy-eight thousand, one hundred ninety.

Scientific notation

• Scientific notation: 2.113895547819 × 10¹³

Factors of 21138955478190

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 18707

Divisors of 21138955478190

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 5 6 9 10 11 15 18 22 27 30 33 45 54 55 66 81 90 99 110 121 135 162 165 198 242 243 270 297 330 363 405 486 495 594 605 726 810 891 990 1089 1210 1215 1485 1782 1815 2178 2430 2673 2970 3267 3630 4455 5346 5419 5445 6534 8910 9801 10838 10890 13267 13365 16257 16335 19602 26534 26730 27095 29403 32514 32670 39801 48771 49005 54190 58806 59609 66335 79602 81285 97542 98010 119218 119403 132670 145937 146313 147015 162570 178827 199005 238806 243855 291874 292626 294030 298045 357654 358209 398010 437811 438939 487710 536481 596090 597015 655699 716418 729685 731565 875622 877878 894135 1072962 1074627 1194030 1311398 1313433 1316817 1459370 1463130 1605307 1609443 1788270 1791045 1967097 2149254 2189055 2194695 2626866 2633634 2682405 3210614 3218886 3223881 3278495 3582090 3934194 3940299 4378110 4389390 4815921 4828329 5364810 5373135 5901291 6447762 6556990 6567165 6584085 7880598 8026535 8047215 9631842 9656658 9835485 10746270 11802582 11820897 13134330 13168170 14447763 14484987 16053070 16094430 16119405 17703873 19670970 19701495 23641794 24079605 24141645 28895526 28969974 29506455 32238810 35407746 35462691 39402990 43343289 48159210 48283290 53111619 59012910 59104485 70925382 71893873 72238815 72424935 86686578 88519365 106223238 118208970 130029867 143787746 144477630 144849870 159334857 177038730 177313455 215681619 216716445 260059734 265558095 318669714 354626910 359469365 390089601 431363238 433432890 531116190 647044857 650149335 718938730 780179202 790832603 796674285 1078408095 1294089714 1300298670 1581665206 1593348570 1941134571 1950448005 2156816190 2372497809 3235224285 3882269142 3900896010 3954163015 4744995618 5823403713 6470448570 7117493427 7908326030 8699158633 9705672855 11646807426 11862489045 14234986854 17398317266 17470211139 19411345710 21352480281 23724978090 26097475899 29117018565 34940422278 35587467135 42704960562 43495793165 52194951798 58234037130 64057440843 71174934270 78292427697 86991586330 87351055695 106762401405 128114881686 130487379495 156584855394 174702111390 192172322529 213524802810 234877283091 260974758990 320287204215 384344645058 391462138485 469754566182 640574408430 704631849273 782924276970 960861612645 1174386415455 1409263698546 1921723225290 2113895547819 2348772830910 3523159246365 4227791095638 7046318492730 10569477739095 21138955478190
• Sum of all divisors σ(n): 62665755384960
• Sum of proper divisors (its aliquot sum) s(n): 41526799906770
• 21138955478190 is an abundant number, because the sum of its proper divisors (41526799906770) is greater than itself. Its abundance is 20387844428580

Bases of 21138955478190

• Binary: 100110011100111001011111011101010010010101110₂
• Hexadecimal: 0x1339CBEEA4AE
• Base-36: 7HR3OASVI

Squares and roots of 21138955478190

• 21138955478190 squared (21138955478190²) is 446855438708899011565676100
• 21138955478190 cubed (21138955478190³) is 9446057224054476541239724963066154259000
• The square root of 21138955478190 is 4597711.9829530427
• The cube root of 21138955478190 is 27649.9600417505

Scales and comparisons

• 21,138,955,478,190 seconds is equal to 672,153 years, 20 weeks, 4 days, 13 hours, 16 minutes, 30 seconds.
• To count from 1 to 21,138,955,478,190 would take you about one million, six hundred eighty thousand, three hundred eighty-three 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 21138955478190 cubic inches would be around 2304.2 feet tall.

Recreational maths with 21138955478190

• 21138955478190 backwards is 09187455983112
• The number of decimal digits it has is: 14
• The sum of 21138955478190's digits is 63
• More coming soon!