21108732064728

Names of 21108732064728

• Cardinal: 21108732064728 can be written as Twenty-one trillion, one hundred eight billion, seven hundred thirty-two million, sixty-four thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1108732064728 × 10¹³

Factors of 21108732064728

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 23475

Divisors of 21108732064728

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 14 21 22 23 24 28 33 42 44 46 47 56 66 69 77 84 88 92 94 132 138 141 154 161 168 184 188 231 253 264 276 282 308 322 329 376 461 462 483 506 517 552 564 616 644 658 759 922 924 966 987 1012 1034 1081 1128 1288 1316 1383 1518 1551 1771 1844 1848 1932 1974 2024 2068 2162 2632 2766 3036 3102 3227 3243 3542 3619 3688 3864 3948 4136 4324 5071 5313 5532 6072 6204 6454 6486 7084 7238 7567 7896 8648 9681 10142 10603 10626 10857 11064 11891 12408 12908 12972 14168 14476 15134 15213 19362 20284 21206 21252 21667 21714 22701 22921 23782 25816 25944 28952 30268 30426 31809 35497 35673 38724 40568 42412 42504 43334 43428 45402 45842 47564 60536 60852 63618 65001 68763 70994 71346 74221 77448 83237 84824 86668 86856 90804 91684 95128 106491 116633 121704 127236 130002 137526 141988 142692 148442 151669 160447 166474 173336 181608 183368 212982 222663 233266 238337 249711 252131 254472 260004 275052 283976 285384 296884 303338 320894 332948 349899 425964 445326 455007 466532 476674 481341 498341 499422 504262 520008 527183 550104 593768 606676 641788 665896 699798 715011 756393 816431 851928 890652 910014 933064 953348 962682 996682 998844 1008524 1054366 1077287 1213352 1283576 1399596 1430022 1495023 1512786 1581549 1632862 1668359 1764917 1781304 1820028 1906696 1925364 1993364 1997688 2017048 2108732 2154574 2449293 2799192 2860044 2990046 3025572 3163098 3231861 3265724 3336718 3488387 3529834 3640056 3690281 3850728 3986728 4217464 4309148 4898586 5005077 5294751 5481751 5720088 5799013 5980092 6051144 6326196 6463722 6531448 6673436 6976774 7059668 7380562 7541009 8618296 9797172 10010154 10465161 10566581 10589502 10963502 11070843 11598026 11850157 11960184 12652392 12927444 13346872 13953548 14119336 14761124 15082018 16445253 17397039 19594344 20020308 20930322 21133162 21179004 21927004 22141686 22623027 23196052 23700314 24777601 25854888 27907096 29522248 30164036 31699743 32890506 34794078 35550471 38372257 40040616 40593091 41860644 42266324 42358008 43854008 44283372 45246054 46392104 47400628 49555202 60328072 63399486 65781012 69588156 71100942 73966067 74332803 76744514 81186182 82951099 83721288 84532648 88566744 90492108 94801256 99110404 115116771 116232391 121779273 126798972 131562024 139176312 142201884 147932134 148665606 153489028 162372364 165902198 173443207 180984216 198220808 221898201 230233542 232464782 243031363 243558546 248853297 253597944 272553611 284403768 295864268 297331212 306978056 324744728 331804396 346886414 348697173 443796402 460467084 464929564 486062726 487117092 496629307 497706594 520329621 545107222 591728536 594662424 663608792 693772828 697394346 729094089 813626737 817660833 887592804 920934168 929859128 972125452 974234184 993258614 995413188 1040659242 1090214444 1387545656 1394788692 1458188178 1489887921 1627253474 1635321666 1701219541 1775185608 1907875277 1944250904 1986517228 1990826376 2081318484 2180428888 2440880211 2673344993 2789577384 2916376356 2979775842 3254506948 3270643332 3402439082 3476405149 3815750554 3973034456 4162636968 4881760422 5103658623 5346689986 5462922377 5723625831 5832752712 5959551684 6509013896 6541286664 6804878164 6952810298 7631501108 8020034979 9763520844 10207317246 10429215447 10693379972 10925844754 11422474061 11447251662 11919103368 13609756328 13905620596 15263002216 16040069958 16388767131 18713414951 19527041688 20414634492 20858430894 21386759944 21851689508 22844948122 22894503324 27811241192 32080139916 32777534262 34267422183 37426829902 38240456639 40829268984 41716861788 43703379016 45689896244 45789006648 56140244853 64160279832 65555068524 68534844366 74853659804 76480913278 79957318427 83433723576 91379792488 112280489706 114721369917 125647214671 131110137048 137069688732 149707319608 152961826556 159914636854 224560979412 229442739834 239871955281 251294429342 274139377464 305923653112 319829273708 376941644013 449121958824 458885479668 479743910562 502588858684 639658547416 753883288026 879530502697 917770959336 959487821124 1005177717368 1507766576052 1759061005394 1918975642248 2638591508091 3015533152104 3518122010788 5277183016182 7036244021576 10554366032364 21108732064728
• Sum of all divisors σ(n): 70269917921280
• Sum of proper divisors (its aliquot sum) s(n): 49161185856552
• 21108732064728 is an abundant number, because the sum of its proper divisors (49161185856552) is greater than itself. Its abundance is 28052453791824

Bases of 21108732064728

• Binary: 100110011001011000010011110011111001111011000₂
• Hexadecimal: 0x1332C279F3D8
• Base-36: 7HD7U25SO

Squares and roots of 21108732064728

• 21108732064728 squared (21108732064728²) is 445578569380476013981713984
• 21108732064728 cubed (21108732064728³) is 9405598634837283850427704821916670756352
• The square root of 21108732064728 is 4594424.0188219459
• The cube root of 21108732064728 is 27636.7762500017

Scales and comparisons

• 21,108,732,064,728 seconds is equal to 671,192 years, 20 weeks, 12 hours, 38 minutes, 48 seconds.
• To count from 1 to 21,108,732,064,728 would take you about one million, six hundred seventy-seven thousand, nine hundred eighty 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 21108732064728 cubic inches would be around 2303.1 feet tall.

Recreational maths with 21108732064728

• 21108732064728 backwards is 82746023780112
• The number of decimal digits it has is: 14
• The sum of 21108732064728's digits is 51
• More coming soon!