21391250250942

Names of 21391250250942

• Cardinal: 21391250250942 can be written as Twenty-one trillion, three hundred ninety-one billion, two hundred fifty million, two hundred fifty thousand, nine hundred forty-two.

Scientific notation

• Scientific notation: 2.1391250250942 × 10¹³

Factors of 21391250250942

• Number of distinct prime factors ω(n): 9
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 838

Divisors of 21391250250942

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 6 9 11 13 18 22 26 29 33 39 58 61 66 71 78 87 99 117 122 127 142 143 174 183 198 213 234 254 261 286 319 366 377 381 426 429 521 522 549 638 639 671 754 762 781 793 858 923 957 1042 1098 1131 1143 1278 1287 1342 1397 1562 1563 1586 1651 1769 1846 1914 2013 2059 2262 2286 2343 2379 2574 2769 2794 2871 3126 3302 3393 3538 3683 4026 4118 4147 4191 4331 4686 4689 4758 4953 5307 5538 5731 5742 6039 6177 6773 6786 7029 7137 7366 7747 8294 8307 8382 8662 8723 9017 9378 9906 10153 10614 11049 11462 12078 12354 12441 12573 12993 13546 14058 14274 14859 15109 15494 15921 16614 17193 17446 18034 18161 18531 19459 20306 20319 22098 22649 22997 23241 24882 25146 25986 26169 26767 27051 29718 30218 30459 31781 31842 33147 34386 36322 36991 37062 37323 38918 38979 40513 40638 45298 45327 45994 46482 47641 47879 51579 52338 53534 54102 54483 56303 58377 60918 60957 63562 66167 66294 67947 68991 69723 73982 74503 74646 77958 78507 80301 81026 81153 85217 90654 91377 95282 95343 95758 99187 100711 103158 108966 110973 112606 116754 117221 121539 121914 125599 132334 135894 135981 137982 139446 142923 143637 149006 157014 160602 162306 163449 166199 168909 170434 175131 182754 190686 196417 198374 198501 201422 203841 206973 221946 223509 224663 234442 240903 243078 251198 252967 255651 261493 271962 285846 286029 287274 294437 297561 302133 326898 332398 332919 337818 349591 350262 351663 364617 376797 392834 397002 406901 407682 413153 413946 428769 430911 447018 449326 480883 481806 498597 505934 506727 511302 522986 526669 550037 572058 588874 589251 595122 595503 604266 619333 665838 670527 673989 699182 703326 727837 729234 753594 758901 766953 784479 813802 826306 857538 860171 861822 883311 892683 906399 921649 961766 997194 1013454 1048773 1053338 1054989 1072739 1100074 1107821 1130391 1178502 1191006 1220703 1238666 1239459 1289431 1341054 1347978 1381589 1442649 1455674 1495791 1517802 1533906 1568958 1580007 1632787 1650111 1720342 1766622 1767753 1785366 1812798 1843298 1857999 1918843 2021967 2097546 2109978 2145478 2160587 2183511 2215642 2256451 2260782 2276703 2353437 2441406 2471293 2478918 2578862 2580513 2649933 2763178 2764947 2876423 2885298 2920619 2991582 3146319 3160014 3218217 3265574 3300222 3323463 3399409 3535506 3662109 3715998 3718377 3837686 3868293 4036187 4043934 4144767 4321174 4327947 4367022 4512902 4544683 4553406 4697857 4706874 4740021 4898361 4942586 4950333 5161026 5289713 5299866 5529894 5573997 5752846 5756529 5841238 6050407 6292638 6436434 6481761 6550533 6646926 6769353 6798818 7150481 7324218 7413879 7436754 7736586 7741539 8072374 8289534 8294841 8629269 8655894 8761857 9089366 9395714 9461881 9480042 9654651 9796722 9900666 9970389 10138139 10198227 10579426 11147994 11513058 11604879 11800129 11981437 12100814 12108561 12434301 12963522 13101066 13538706 13634049 13945607 14093571 14300962 14695083 14827758 15483078 15869139 15951073 16589682 17258538 17269587 17523714 17960657 18151221 18923762 19309302 19445283 19940778 20276278 20308059 20396454 21107273 21451443 22241637 23209758 23600258 23962874 24217122 24820961 24868602 24944959 25887807 26285571 27268098 27891214 28187142 28385643 29333863 29390166 30414417 30594681 31738278 31902146 32126809 34539174 35400387 35921314 35944311 36302442 36325683 37393499 38890566 40616118 40902147 41836821 42214546 42280713 42902886 44398057 44483274 47607417 47853219 49641922 49889918 51676427 51775614 52470431 52571142 53881971 54453663 56771286 58667726 60828834 61072141 61189362 63321819 64253618 64354329 65437079 70800774 71888622 72651366 74462883 74786998 74834877 78655291 81804294 83673642 84561426 85156929 88001589 88796114 91243251 95214834 95706438 96380427 103352854 104940862 106201161 107763942 107832933 108907326 112180497 117049423 122144282 125510463 126643638 128708658 130874158 131795807 133194171 136237853 143559657 148925766 149669754 153401677 155029281 157310582 157411293 161645913 170313858 175461803 176003178 182486502 183216423 189965457 192760854 196311237 207363949 212402322 215665866 223388649 224360994 224504631 234098846 235965873 251020926 263591614 264004767 266388342 272475706 274394549 286569277 287119314 289141281 306803354 310058562 314822586 322672493 323291826 336541491 350923606 351148269 366432846 379930914 392622474 395387421 399582513 408713559 414727898 446777298 449009262 460205031 465087843 471931746 472233879 526385409 528009534 548789098 549649269 573138554 577174741 578282562 588933711 622091847 645344986 671793551 673082982 702296538 707897619 719807869 790774842 799165026 817427118 823183647 850682027 859707831 920410062 930175686 944467758 968017479 1052770818 1053444807 1099298538 1154349482 1177867422 1186162263 1226140677 1244183694 1287543653 1343587102 1380615093 1415795238 1439615738 1498616383 1521642499 1579156227 1646367294 1701364054 1719415662 1731524223 1771092089 1866275541 1936034958 2015380653 2106889614 2159423607 2281003439 2372324526 2452281354 2469550941 2552046081 2575087306 2579123493 2761230186 2904052437 2997232766 3043284998 3152262047 3158312454 3463048446 3542184178 3725400601 3732551082 3862630959 4030761306 4318847214 4495849149 4562006878 4564927497 4939101882 5104092162 5158246986 5194572669 5313276267 5808104874 6046141959 6304524094 6478270821 6843010317 7450801202 7656138243 7725261918 8310509033 8991698298 9129854994 9357502297 9456786141 10389145338 10626552534 11176201803 11587892877 12092283918 12956541642 13487547447 13686020634 13694782491 15312276486 15939828801 16621018066 16738067489 18715004594 18913572282 19482012979 20529030951 22352403606 23175785754 24931527099 26975094894 27389564982 28072506891 28370358423 31879657602 33476134978 33528605409 38964025958 40979406611 41058061902 49863054198 50214202467 56145013782 56740716846 58446038937 67057210818 74794581297 81958813222 84217520673 91415599363 100428404934 108036617429 116892077874 122938219833 149589162594 150642607401 168435041346 175338116811 182831198726 216073234858 245876439666 274246798089 301285214802 324109852287 350676233622 368814659499 548493596178 648219704574 737629318998 822740394267 972329556861 1188402791719 1645480788534 1944659113722 2376805583438 3565208375157 7130416750314 10695625125471 21391250250942
• Sum of all divisors σ(n): 58627287613440
• Sum of proper divisors (its aliquot sum) s(n): 37236037362498
• 21391250250942 is an abundant number, because the sum of its proper divisors (37236037362498) is greater than itself. Its abundance is 15844787111556

Bases of 21391250250942

• Binary: 100110111010010001001110111110101110010111110₂
• Hexadecimal: 0x137489DF5CBE
• Base-36: 7KZ063DFI

Squares and roots of 21391250250942

• 21391250250942 squared (21391250250942²) is 457585587298426177971887364
• 21391250250942 cubed (21391250250942³) is 9788327809124901427382797527786358896888
• The square root of 21391250250942 is 4625067.5942024891
• The cube root of 21391250250942 is 27759.5266378039

Scales and comparisons

• 21,391,250,250,942 seconds is equal to 680,175 years, 30 weeks, 4 days, 22 hours, 35 minutes, 42 seconds.
• To count from 1 to 21,391,250,250,942 would take you about one million, seven hundred thousand, four hundred thirty-eight 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 21391250250942 cubic inches would be around 2313.3 feet tall.

Recreational maths with 21391250250942

• 21391250250942 backwards is 24905205219312
• The number of decimal digits it has is: 14
• The sum of 21391250250942's digits is 45
• More coming soon!