21001100991390

Names of 21001100991390

• Cardinal: 21001100991390 can be written as Twenty-one trillion, one billion, one hundred million, nine hundred ninety-one thousand, three hundred ninety.

Scientific notation

• Scientific notation: 2.100110099139 × 10¹³

Factors of 21001100991390

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 409

Divisors of 21001100991390

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 5 6 9 10 13 15 18 19 26 30 31 38 39 45 57 62 65 78 79 90 93 95 114 117 130 155 158 171 186 190 195 234 237 247 257 279 285 310 342 361 390 395 403 465 474 494 514 558 570 585 589 711 722 741 771 790 806 855 930 1027 1083 1170 1178 1185 1209 1235 1285 1395 1422 1482 1501 1542 1710 1767 1805 2015 2054 2166 2223 2313 2370 2418 2449 2470 2570 2790 2945 3002 3081 3249 3341 3534 3555 3610 3627 3705 3855 4030 4446 4503 4626 4693 4883 4898 5135 5301 5415 5890 6045 6162 6241 6498 6682 7110 7254 7347 7410 7505 7657 7710 7967 8835 9006 9243 9386 9766 10023 10270 10602 10830 11115 11191 11565 12090 12245 12482 13509 14079 14649 14694 15010 15314 15405 15934 16245 16705 17670 18135 18486 18723 19513 20046 20303 22041 22230 22382 22515 22971 23130 23465 23901 24415 24490 26505 27018 28158 28519 29298 30069 30810 31205 31837 32490 33410 33573 36270 36735 37446 38285 39026 39835 40606 42237 43947 44082 45030 45942 46215 46531 46930 47802 48830 50115 53010 55955 56169 57038 58539 60138 60909 62410 63479 63674 67146 67545 68913 70395 71703 73245 73470 76570 79670 81133 84474 85557 87894 92430 92777 93062 93615 95511 97565 100230 100719 101515 103571 110205 111910 112338 114855 117078 118579 119505 121818 126958 135090 137826 139593 140790 142595 143406 145483 146490 150345 151373 159185 162266 167865 171114 175617 182727 185554 187230 190437 191022 193471 195130 201438 203030 207142 211185 219735 220410 229710 232655 237158 239010 243399 256671 263939 278331 279186 280845 285190 286533 290966 292695 300690 302746 304545 310713 317395 318370 335730 344565 351234 355737 358515 365454 370747 380874 385757 386942 405665 418779 422370 427785 436449 439470 454119 463885 465310 477555 486798 503595 513342 517855 527878 556662 561690 571311 573066 580413 585390 592895 604903 609090 621426 629393 634790 689130 697965 711474 717030 727415 730197 741494 756865 771514 791817 811330 834993 837558 855570 872898 878085 884089 908238 913635 927770 932139 952185 955110 967355 1007190 1035710 1067211 1112241 1142622 1157271 1160826 1185790 1206101 1209806 1216995 1258786 1283355 1309347 1319695 1362357 1391655 1395930 1432665 1454830 1460394 1513730 1541527 1553565 1583634 1603937 1669986 1741239 1756170 1768178 1778685 1814709 1827270 1853735 1864278 1888179 1904370 1928785 1934710 1967849 2093895 2134422 2182245 2224482 2253001 2270595 2314542 2375451 2412202 2433990 2515123 2566710 2618694 2639390 2652267 2724714 2783310 2856555 2865330 2876087 2902065 3024515 3083054 3107130 3146965 3207874 3336723 3471813 3482478 3557370 3618303 3629418 3650985 3675949 3707470 3776358 3857570 3935698 3959085 4174965 4187790 4364490 4420445 4506002 4541190 4624581 4660695 4750902 4811811 5014841 5030246 5304534 5336055 5444127 5561205 5664537 5713110 5752174 5786355 5804130 5903547 6030505 6049030 6293930 6546735 6673446 6759003 6811785 6943626 7236606 7301970 7329383 7351898 7545369 7707635 7918170 7956801 8019685 8182109 8349930 8628261 8706195 8840890 9073545 9249162 9321390 9440895 9623622 9839245 10029682 10672110 10854909 10888254 11027847 11122410 11265005 11329074 11493157 11572710 11807094 11877255 11958467 12061010 12575615 13093470 13261335 13518006 13623570 13873743 14380435 14435433 14658766 15044523 15090738 15415270 15913602 16039370 16364218 16683615 17256522 17359065 17412390 17710641 18091515 18147090 18379745 18881790 19678490 20277009 20851181 21709818 21988149 22055694 22530010 22636107 22986314 23122905 23754510 23916934 24059055 24546327 25074205 25151230 25884783 26522670 27220635 27747486 28322685 28760870 28870866 29289013 29517735 30089046 30474803 33083541 33367230 33795015 34479471 34718130 35421282 35875401 36183030 36646915 36759490 37389131 37726845 39784005 40554018 40910545 41702362 43141305 43976298 45133569 45272214 46245810 47787337 48118110 49092654 49722047 50148410 51769566 54274545 54441270 55139235 56645370 57465785 58578026 59035470 59792335 60949606 62553543 65964447 66167082 67590030 68958942 69368715 69843031 71750802 72177165 73293830 73638981 74778262 75222615 75453690 79568010 81821090 86282610 87867039 88553205 90267138 91424409 95281979 95574674 99444094 101385045 103438413 104255905 107626203 108549090 109940745 110278470 112167393 113180535 114931570 119584670 122731635 125107086 129423915 131928894 138737430 139686062 143362011 144354330 146445065 147277962 149166141 150445230 152374015 155460071 165417705 172397355 175734078 177106410 179377005 182848818 186945655 187660629 190563958 202770090 206876826 208511810 209529093 215252406 219881490 224334786 225667845 226361070 227210873 238936685 245463270 248610235 258847830 263601117 274273227 285845937 286724022 292890130 298332282 304748030 310920142 312767715 329822235 330835410 336502179 344794710 349215155 358754010 368194905 373891310 375321258 396172439 419058186 430086033 439335195 447498423 451335690 454421746 457122045 466380213 476409895 477873370 497220470 517192065 527202234 538131015 548546454 560836965 571691874 579021257 625535430 628587279 646386611 659644470 673004358 681632619 698430310 716810055 736389810 745830705 777300355 792344878 857537811 860172066 878670390 894996846 907959403 914244090 932760426 938303145 944718893 952819790 1034384130 1047645465 1076262030 1121673930 1136054365 1158042514 1188517317 1257174558 1292773222 1318005585 1363265238 1371366135 1399140639 1429229685 1433620110 1491661410 1554600710 1682510895 1715075622 1737063771 1815918806 1876606290 1889437786 1939159833 1980862195 2044897857 2095290930 2150430165 2237492115 2272108730 2331901065 2377034634 2636011170 2723878209 2742732270 2798281278 2834156679 2858459370 2895106285 2953741349 3142936395 3231933055 3365021790 3408163095 3474127542 3565551951 3878319666 3961724390 4089795714 4287689055 4300860330 4474984230 4539797015 4663802130 4723594465 5211191313 5447756418 5668313358 5790212570 5817479499 5907482698 5942586585 6285872790 6463866110 6816326190 6995703195 7131103902 7527276341 8171634627 8502470037 8575378110 8685318855 8861224047 9079594030 9447188930 9695799165 10224489285 10422382626 11634958998 11885173170 12281345609 13619391045 13991406390 14170783395 14768706745 15054552682 16343269254 17004940074 17370637710 17722448094 17827759755 17949658967 19391598330 20448978570 22581829023 24562691218 26055956565 26583672141 27238782090 28341566790 29087397495 29537413490 35655519510 35899317934 36844036827 37636381705 40858173135 42512350185 44306120235 45163658046 52111913130 53167344282 53848976901 58174794990 61406728045 67745487069 73688073654 75272763410 81716346270 85024700370 88612240470 89748294835 107697953802 110532110481 112909145115 122813456090 132918360705 135490974138 161546930703 179496589670 184220184135 221064220962 225818290230 233345566571 265836721410 269244884505 323093861406 338727435345 368440368270 466691133142 538489769010 552660552405 677454870690 700036699713 807734653515 1105321104810 1166727832855 1400073399426 1615469307030 2100110099139 2333455665710 3500183498565 4200220198278 7000366997130 10500550495695 21001100991390
• Sum of all divisors σ(n): 65136488691456
• Sum of proper divisors (its aliquot sum) s(n): 44135387700066
• 21001100991390 is an abundant number, because the sum of its proper divisors (44135387700066) is greater than itself. Its abundance is 23134286708676

Bases of 21001100991390

• Binary: 100110001100110110011001010100001101110011110₂
• Hexadecimal: 0x1319B32A1B9E
• Base-36: 7FZRTAQ3I

Squares and roots of 21001100991390

• 21001100991390 squared (21001100991390²) is 441046242850562040854132100
• 21001100991390 cubed (21001100991390³) is 9262456687977773175800415327688022619000
• The square root of 21001100991390 is 4582695.8213905055
• The cube root of 21001100991390 is 27589.7239064589

Scales and comparisons

• 21,001,100,991,390 seconds is equal to 667,770 years, 2 weeks, 4 days, 12 hours, 16 minutes, 30 seconds.
• To count from 1 to 21,001,100,991,390 would take you about one million, six hundred sixty-nine thousand, four hundred twenty-five 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 21001100991390 cubic inches would be around 2299.1 feet tall.

Recreational maths with 21001100991390

• 21001100991390 backwards is 09319900110012
• The number of decimal digits it has is: 14
• The sum of 21001100991390's digits is 36
• More coming soon!