21285105146442

Names of 21285105146442

• Cardinal: 21285105146442 can be written as Twenty-one trillion, two hundred eighty-five billion, one hundred five million, one hundred forty-six thousand, four hundred forty-two.

Scientific notation

• Scientific notation: 2.1285105146442 × 10¹³

Factors of 21285105146442

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 938

Divisors of 21285105146442

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 6 9 18 19 27 37 38 54 57 74 81 111 114 162 171 222 243 333 342 486 513 666 703 729 877 999 1026 1406 1458 1539 1754 1998 2109 2187 2631 2997 3078 4218 4374 4617 5262 5994 6327 6561 7893 8991 9234 12654 13122 13851 15786 16663 17982 18981 19683 23679 26973 27702 32449 33326 37962 39366 41553 47358 49989 53946 56943 64898 71037 80919 83106 97347 99978 113886 124659 142074 149967 161838 170829 194694 213111 242757 249318 292041 299934 341658 373977 426222 449901 485514 512487 584082 616531 639333 728271 747954 769129 876123 899802 1024974 1233062 1278666 1349703 1456542 1537461 1538258 1752246 1849593 1917999 2307387 2628369 2699406 3074922 3699186 3835998 4049109 4612383 4614774 5256738 5548779 5753997 6922161 7885107 8098218 9224766 11097558 11507994 12147327 13837149 13844322 14613451 15770214 16646337 17261991 20766483 23655321 24294654 27674298 28457773 29226902 33292674 34523982 36441981 41532966 43840353 47310642 49939011 56915546 62299449 70965963 72883962 85373319 87680706 99878022 109325943 124598898 131521059 141931926 149817033 170746638 186898347 212897889 218651886 256119957 263042118 299634066 327977829 373796694 394563177 425795778 449451099 512239914 540697687 560695041 638693667 655955658 768359871 789126354 898902198 1081395374 1121390082 1183689531 1277387334 1348353297 1536719742 1622093061 1682085123 2305079613 2367379062 2696706594 3244186122 3364170246 3551068593 4045059891 4610159226 4866279183 5046255369 6915238839 7102137186 8090119782 9732558366 10092510738 10653205779 12135179673 13830477678 14598837549 15138766107 20745716517 21306411558 24270359346 29197675098 30277532214 31959617337 41491433034 43796512647 62237149551 63919234674 87593025294 95878852011 124474299102 131389537941 186711448653 191757704022 262779075882 287636556033 373422897306 394168613823 560134345959 575273112066 788337227646 1120268691918 1182505841469 2365011682938 3547517524407 7095035048814 10642552573221 21285105146442
• Sum of all divisors σ(n): 51832805603040
• Sum of proper divisors (its aliquot sum) s(n): 30547700456598
• 21285105146442 is an abundant number, because the sum of its proper divisors (30547700456598) is greater than itself. Its abundance is 9262595310156

Bases of 21285105146442

• Binary: 100110101101111010011001000011001101001001010₂
• Hexadecimal: 0x135BD3219A4A
• Base-36: 7JM8Q1EMI

Squares and roots of 21285105146442

• 21285105146442 squared (21285105146442²) is 453055701095091714265259364
• 21285105146442 cubed (21285105146442³) is 9643338235004025102533464235406331782888
• The square root of 21285105146442 is 4613578.3451071905
• The cube root of 21285105146442 is 27713.5354817049

Scales and comparisons

• 21,285,105,146,442 seconds is equal to 676,800 years, 26 weeks, 1 day, 15 hours, 20 minutes, 42 seconds.
• To count from 1 to 21,285,105,146,442 would take you about one million, six hundred ninety-two thousand and 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 21285105146442 cubic inches would be around 2309.5 feet tall.

Recreational maths with 21285105146442

• 21285105146442 backwards is 24464150158212
• The number of decimal digits it has is: 14
• The sum of 21285105146442's digits is 45
• More coming soon!