21348742987845

Names of 21348742987845

• Cardinal: 21348742987845 can be written as Twenty-one trillion, three hundred forty-eight billion, seven hundred forty-two million, nine hundred eighty-seven thousand, eight hundred forty-five.

Scientific notation

• Scientific notation: 2.1348742987845 × 10¹³

Factors of 21348742987845

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 57

Divisors of 21348742987845

• Number of divisors d(n): 630
• Complete list of divisors:
  1 3 5 7 9 13 15 21 27 29 35 39 45 49 63 65 81 87 91 105 117 135 145 147 169 189 195 203 243 245 261 273 315 351 377 405 435 441 455 507 567 585 609 637 729 735 783 819 841 845 945 1015 1053 1131 1183 1215 1305 1323 1365 1421 1521 1701 1755 1827 1885 1911 2205 2349 2457 2523 2535 2639 2835 3045 3159 3185 3393 3549 3645 3915 3969 4095 4205 4263 4563 4901 5103 5265 5481 5655 5733 5887 5915 6615 7047 7105 7371 7569 7605 7917 8281 8505 9135 9477 9555 10179 10647 10933 11745 11907 12285 12615 12789 13195 13689 14703 15795 16443 16965 17199 17661 17745 18473 19845 21141 21315 22113 22707 22815 23751 24389 24505 24843 25515 27405 28665 29435 30537 31941 32799 34307 35235 35721 36855 37845 38367 39585 41067 41209 41405 44109 47385 49329 50895 51597 52983 53235 54665 55419 59535 63945 66339 68121 68445 71253 73167 73515 74529 76531 82215 85995 88305 91611 92365 95823 98397 102921 105705 110565 113535 115101 118755 121945 123201 123627 124215 132327 142129 147987 152685 154791 158949 159705 163995 166257 170723 171535 178605 191835 204363 205335 206045 213759 219501 220545 223587 229593 240149 246645 257985 264915 274833 277095 287469 295191 308763 317057 331695 340605 345303 356265 365835 370881 372645 382655 396981 426387 458055 464373 476847 479115 491985 498771 512169 514605 535717 575505 613089 616005 618135 641277 658503 661635 670761 688779 707281 710645 720447 739935 773955 794745 831285 853615 862407 885573 926289 951171 994903 1021815 1035909 1068795 1097505 1112643 1117935 1147965 1190943 1195061 1200745 1279161 1374165 1430541 1437345 1475955 1496313 1536507 1543815 1585285 1607151 1726515 1854405 1923831 1975509 1984905 2012283 2066337 2121843 2131935 2161341 2219399 2321865 2384235 2493855 2560845 2656719 2678585 2778867 2853513 2984709 3065445 3206385 3292515 3337929 3353805 3443895 3536405 3572829 3585183 3602235 3837483 4121741 4291623 4312035 4427865 4488939 4609521 4631445 4755855 4821453 4950967 4974515 5179545 5563215 5926527 5954715 5975305 6036849 6199011 6365529 6395805 6484023 6658197 6964321 7152705 7481565 7682535 7970157 8035755 8336601 8560539 8954127 9194653 9619155 9877545 10013787 10061415 10331685 10609215 10755549 10806705 11096995 11512449 12365223 13283595 13466817 13828563 13894335 14267565 14464359 14852901 14923545 15535793 16689645 17779581 17864145 17925915 18597033 19096587 19187415 19452069 19974591 20608705 20892963 21458115 22444695 23047605 24107265 24754835 25009803 25681617 26862381 27583959 28852187 29632635 30041361 30184245 30995055 31827645 32266647 32420115 33290985 34537347 34656769 34821605 37095669 39850785 41485689 41683005 42802695 43393077 44558703 44770635 45973265 46607379 50068935 53777745 55791099 57289761 57562245 58356207 59923773 61826115 62678889 64362571 67334085 69142815 72321795 74264505 77044851 77678965 80587143 82751877 86556561 88897905 92985165 95482935 96799941 97260345 99872955 103612041 103970307 104464815 111287007 119530489 124457067 125049015 128408085 130179231 133676109 134311905 137919795 139822137 144260935 150206805 161333235 171869283 172686735 173283845 175068621 179771319 185478345 188036667 193087713 201965309 207428445 216965385 222793515 231134553 233036895 241761429 248255631 259669683 278955495 286448805 290399823 291781035 299618865 311910921 313394445 321812855 333861021 358591467 385224255 390537693 401028327 402935715 413759385 419466411 432782805 450537997 483999705 515607849 518060205 519851535 539313957 556435035 564110001 579263139 597652445 605895927 622285335 650896155 668380545 699110685 725284287 744766893 779009049 836713423 859346415 871199469 875343105 898856595 935732763 940183335 965438565 1001583063 1009826545 1075774401 1155672765 1203084981 1208807145 1241278155 1258399233 1298348415 1351613991 1451999115 1559554605 1617941871 1669305105 1692330003 1737789417 1792957335 1817687781 1952688465 2005141635 2097332055 2234300679 2252689985 2337027147 2510140269 2578039245 2696569785 2807198289 2820550005 2896315695 3004749189 3029479635 3227323203 3609254943 3626421435 3723834465 3775197699 3895045245 4054841973 4183567115 4355997345 4678663815 5007915315 5076990009 5213368251 5378872005 5453063343 5856993961 6015424905 6291996165 6702902037 6758069955 7011081441 7530420807 8089709355 8421594867 8461650015 8688947085 9088438905 9681969609 11171503395 11325593097 11685135735 12164525919 12550701345 14035991445 15023745945 15640104753 16136616015 16359190029 17570981883 18046274715 18875988495 20274209865 21033244323 22591262421 25264784601 25384950045 26066841255 27265316715 29045908827 29284969805 33514510185 35055407205 36493577757 37652104035 42107974335 46920314259 48409848045 49077570087 52712945649 56627965485 60822629595 67773787263 78200523765 81795950145 87137726481 87854909415 105166221615 109480733271 112956312105 126323923005 145229544135 147232710261 158138836947 182467888785 203321361789 234601571295 245387850435 263564728245 328442199813 338868936315 435688632405 474416510841 547403666355 609964085367 736163551305 790694184735 1016606808945 1423249532523 1642210999065 2372082554205 3049820426835 4269748597569 7116247662615 21348742987845
• Sum of all divisors σ(n): 50110564451418
• Sum of proper divisors (its aliquot sum) s(n): 28761821463573
• 21348742987845 is an abundant number, because the sum of its proper divisors (28761821463573) is greater than itself. Its abundance is 7413078475728

Bases of 21348742987845

• Binary: 100110110101010100100001111100000000001000101₂
• Hexadecimal: 0x136AA43E0045
• Base-36: 7KFH6D7B9

Squares and roots of 21348742987845

• 21348742987845 squared (21348742987845²) is 455768827161061057817744025
• 21348742987845 cubed (21348742987845³) is 9730091552933042036516460871735896376125
• The square root of 21348742987845 is 4620469.9964229829
• The cube root of 21348742987845 is 27741.1271528767

Scales and comparisons

• 21,348,742,987,845 seconds is equal to 678,823 years, 51 weeks, 3 days, 17 hours, 30 minutes, 45 seconds.
• To count from 1 to 21,348,742,987,845 would take you about one million, six hundred ninety-seven thousand and fifty-nine 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 21348742987845 cubic inches would be around 2311.8 feet tall.

Recreational maths with 21348742987845

• 21348742987845 backwards is 54878924784312
• The number of decimal digits it has is: 14
• The sum of 21348742987845's digits is 72
• More coming soon!