21456218735406

Names of 21456218735406

• Cardinal: 21456218735406 can be written as Twenty-one trillion, four hundred fifty-six billion, two hundred eighteen million, seven hundred thirty-five thousand, four hundred six.

Scientific notation

• Scientific notation: 2.1456218735406 × 10¹³

Factors of 21456218735406

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 3552

Divisors of 21456218735406

• Number of divisors d(n): 252
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 21 26 27 39 42 54 63 78 81 91 117 126 162 169 182 189 234 243 273 338 351 378 486 507 546 567 702 729 819 1014 1053 1134 1183 1458 1521 1638 1701 2106 2366 2457 3042 3159 3402 3527 3549 4563 4914 5103 6318 7054 7098 7371 9126 9477 10206 10581 10647 13689 14742 18954 21162 21294 22113 24689 27378 31743 31941 41067 44226 45851 49378 63486 63882 66339 74067 82134 91702 95229 95823 123201 132678 137553 148134 190458 191646 222201 246402 275106 285687 287469 320957 412659 444402 571374 574938 596063 641914 666603 825318 857061 862407 962871 1192126 1237977 1333206 1714122 1724814 1788189 1925742 1999809 2475954 2571183 2888613 3576378 3713931 3999618 4172441 5142366 5364567 5777226 5999427 7427862 8344882 8665839 10729134 11141793 11998854 12439729 12517323 16093701 17331678 17998281 22283586 24879458 25034646 25997517 32187402 33425379 35996562 37319187 37551969 48281103 51995034 66850758 74638374 75103938 77992551 87078103 96562206 111957561 112655907 144843309 155985102 161716477 174156206 223915122 225311814 233977653 261234309 289686618 323432954 335872683 337967721 434529927 467955306 485149431 522468618 671745366 675935442 783702927 869059854 970298862 1007618049 1013903163 1132015339 1455448293 1567405854 2015236098 2027806326 2102314201 2264030678 2351108781 2910896586 3022854147 3041709489 3396046017 4204628402 4366344879 4702217562 6045708294 6083418978 6306942603 6792092034 7053326343 8732689758 9068562441 10188138051 12613885206 13099034637 14106652686 14716199407 18137124882 18920827809 20376276102 21159979029 26198069274 29432398814 30564414153 37841655618 39297103911 42319958058 44148598221 56762483427 61128828306 63479937087 78594207822 88297196442 91693242459 113524966854 117891311733 126959874174 132445794663 170287450281 183386484918 235782623466 264891589326 275079727377 340574900562 397337383989 510862350843 550159454754 794674767978 825239182131 1021724701686 1192012151967 1532587052529 1650478364262 2384024303934 3065174105058 3576036455901 7152072911802 10728109367703 21456218735406
• Sum of all divisors σ(n): 59733307725192
• Sum of proper divisors (its aliquot sum) s(n): 38277088989786
• 21456218735406 is an abundant number, because the sum of its proper divisors (38277088989786) is greater than itself. Its abundance is 16820870254380

Bases of 21456218735406

• Binary: 100111000001110101010010010111100001100101110₂
• Hexadecimal: 0x1383AA4BC32E
• Base-36: 7LSUMNGVI

Squares and roots of 21456218735406

• 21456218735406 squared (21456218735406²) is 460369322421587449837984836
• 21456218735406 cubed (21456218735406³) is 9877784880948230154557807457463324303416
• The square root of 21456218735406 is 4632085.7867062437
• The cube root of 21456218735406 is 27787.6015375791

Scales and comparisons

• 21,456,218,735,406 seconds is equal to 682,241 years, 20 weeks, 23 hours, 50 minutes, 6 seconds.
• To count from 1 to 21,456,218,735,406 would take you about one million, seven hundred five thousand, six hundred 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 21456218735406 cubic inches would be around 2315.6 feet tall.

Recreational maths with 21456218735406

• 21456218735406 backwards is 60453781265412
• 21456218735406 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21456218735406's digits is 54
• More coming soon!