21497199745920

Names of 21497199745920

• Cardinal: 21497199745920 can be written as Twenty-one trillion, four hundred ninety-seven billion, one hundred ninety-nine million, seven hundred forty-five thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.149719974592 × 10¹³

Factors of 21497199745920

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 1320

Divisors of 21497199745920

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 31 32 40 48 60 62 64 79 80 93 96 120 124 128 139 155 158 160 186 192 237 240 248 278 310 316 320 372 384 395 417 465 474 480 496 556 620 632 640 695 744 790 834 930 948 960 961 992 1061 1112 1185 1240 1264 1390 1488 1580 1668 1860 1896 1920 1922 1984 2085 2122 2224 2370 2449 2480 2528 2780 2883 2976 3160 3183 3336 3720 3792 3844 3968 4170 4244 4309 4448 4740 4805 4898 4960 5056 5305 5560 5766 5952 6320 6366 6672 7347 7440 7584 7688 8340 8488 8618 8896 9480 9610 9796 9920 10112 10610 10981 11120 11532 11904 12245 12640 12732 12927 13344 14415 14694 14880 15168 15376 15915 16680 16976 17236 17792 18960 19220 19592 19840 21220 21545 21962 22240 23064 24490 25280 25464 25854 26688 28830 29388 29760 30336 30752 31830 32891 32943 33360 33952 34472 36735 37920 38440 39184 42440 43090 43924 44480 46128 48980 50560 50928 51708 53376 54905 57660 58776 59520 61504 63660 64635 65782 65886 66720 67904 68944 73470 75840 75919 76880 78368 83819 84880 86180 87848 88960 92256 97960 98673 101856 103416 109810 115320 117552 123008 127320 129270 131564 131772 133440 133579 135808 137888 146940 147479 151680 151838 153760 156736 164455 164715 167638 169760 172360 175696 184512 195920 197346 203712 206832 219620 227757 230640 235104 251457 254640 258540 263128 263544 266880 267158 275776 293880 294958 303676 307520 313472 328910 329430 335276 339520 340411 344720 351392 369024 379595 391840 394692 400737 407424 413664 419095 439240 442437 455514 461280 470208 493365 502914 509280 517080 526256 527088 534316 551552 587760 589916 607352 615040 657820 658860 667895 670552 679040 680822 689440 702784 737395 759190 783680 789384 801474 827328 838190 878480 884874 911028 922560 940416 986730 1005828 1018560 1019621 1021233 1034160 1052512 1054176 1068632 1138785 1175520 1179832 1214704 1257285 1315640 1317720 1335790 1341104 1361644 1378880 1405568 1474790 1518380 1567360 1578768 1602948 1654656 1676380 1702055 1756960 1769748 1822056 1845120 1973460 2003685 2011656 2037120 2039242 2042466 2068320 2105024 2108352 2137264 2212185 2277570 2351040 2359664 2429408 2514570 2598389 2631280 2635440 2671580 2682208 2723288 2757760 2949580 3036760 3058863 3157536 3205896 3352760 3404110 3513920 3539496 3644112 3946920 4007370 4023312 4078484 4084932 4136640 4210048 4216704 4274528 4424370 4555140 4571849 4702080 4719328 4858816 5029140 5098105 5106165 5196778 5262560 5270880 5343160 5364416 5446576 5899160 6073520 6117726 6315072 6411792 6705520 6808220 7027840 7078992 7288224 7795167 7893840 8014740 8046624 8156968 8169864 8273280 8549056 8848740 9110280 9143698 9438656 9717632 10058280 10196210 10212330 10393556 10525120 10541760 10552741 10686320 10728832 10893152 11650841 11798320 12147040 12235452 12630144 12823584 12991945 13411040 13616440 13715547 14157984 14576448 15294315 15590334 15787680 16029480 16093248 16313936 16339728 17098112 17697480 18220560 18287396 18877312 20116560 20392420 20424660 20787112 21050240 21083520 21105482 21372640 21786304 22859245 23301682 23596640 24294080 24470904 25647168 25983890 26822080 27232880 27431094 28315968 29152896 30588630 31180668 31575360 31658223 32058960 32186496 32627872 32679456 34952523 35394960 36441120 36574792 38975835 40233120 40784840 40849320 41574224 42210964 42745280 43572608 45718490 46603364 47193280 48588160 48941808 51294336 51967780 52763705 53644160 54465760 54862188 56631936 58254205 61177260 62361336 63150720 63316446 64117920 65255744 65358912 68577735 69905046 70789920 72882240 73149584 77951670 80466240 80550059 81569680 81698640 83148448 84421928 85490560 91436980 93206728 94386560 97883616 103935560 105527410 108931520 109724376 116508410 122354520 124722672 126632892 128235840 130511488 130717824 137155470 139810092 141579840 141727319 145764480 146299168 155903340 158291115 160932480 161100118 163139360 163397280 166296896 168843856 174762615 182873960 186413456 195767232 207871120 211054820 217863040 219448752 233016820 241650177 244709040 249445344 253265784 256471680 274310940 279620184 283159680 283454638 292598336 311806680 316582230 322200236 326278720 326794560 332593792 337687712 349525230 361176071 365747920 372826912 391534464 402750295 415742240 422109640 425181957 438897504 466033640 483300354 489418080 498890688 506531568 548621880 559240368 566909276 585196672 623613360 633164460 644400472 652557440 653589120 675375424 699050460 708636595 722352142 731495840 745653824 805500590 831484480 844219280 850363914 877795008 932067280 966600708 978836160 997781376 1013063136 1083528213 1097243760 1118480736 1133818552 1208250885 1247226720 1266328920 1288800944 1350750848 1398100920 1417273190 1444704284 1462991680 1491307648 1611001180 1662968960 1688438560 1700727828 1755590016 1805880355 1864134560 1933201416 1957672320 2026126272 2125909785 2167056426 2194487520 2236961472 2267637104 2416501770 2494453440 2532657840 2577601888 2796201840 2834546380 2889408568 2925983360 3222002360 3376877120 3401455656 3611760710 3728269120 3866402832 4052252544 4251819570 4334112852 4388975040 4473922944 4535274208 4833003540 4988906880 5065315680 5155203776 5417641065 5592403680 5669092760 5778817136 6444004720 6753754240 6802911312 7223521420 7456538240 7732805664 8503639140 8668225704 8777950080 9070548416 9666007080 10130631360 10310407552 10835282130 11184807360 11196458201 11338185520 11557634272 12888009440 13605822624 14447042840 15465611328 17007278280 17336451408 18141096832 19332014160 20261262720 21670564260 22369614720 22392916402 22676371040 23115268544 25776018880 27211645248 28894085680 30931222656 33589374603 34014556560 34672902816 38664028320 43341128520 44785832804 45352742080 46230537088 51552037760 54423290496 55982291005 57788171360 67178749206 68029113120 69345805632 77328056640 86682257040 89571665608 90705484160 111964582010 115576342720 134357498412 136058226240 138691611264 154656113280 167946873015 173364514080 179143331216 223929164020 231152685440 268714996824 272116452480 335893746030 346729028160 358286662432 447858328040 537429993648 671787492060 693458056320 716573324864 895716656080 1074859987296 1343574984120 1433146649728 1791433312160 2149719974592 2687149968240 3582866624320 4299439949184 5374299936480 7165733248640 10748599872960 21497199745920
• Sum of all divisors σ(n): 72284171904000
• Sum of proper divisors (its aliquot sum) s(n): 50786972158080
• 21497199745920 is an abundant number, because the sum of its proper divisors (50786972158080) is greater than itself. Its abundance is 29289772412160

Bases of 21497199745920

• Binary: 100111000110100110100111101000101101110000000₂
• Hexadecimal: 0x138D34F45B80
• Base-36: 7MBODOQYO

Squares and roots of 21497199745920

• 21497199745920 squared (21497199745920²) is 462129596915982912556646400
• 21497199745920 cubed (21497199745920³) is 9934492253404379883399800567687282688000
• The square root of 21497199745920 is 4636507.2787519703
• The cube root of 21497199745920 is 27805.2815672643

Scales and comparisons

• 21,497,199,745,920 seconds is equal to 683,544 years, 23 weeks, 5 days, 5 hours, 52 minutes.
• To count from 1 to 21,497,199,745,920 would take you about one million, seven hundred eight thousand, eight hundred sixty-one 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 21497199745920 cubic inches would be around 2317.1 feet tall.

Recreational maths with 21497199745920

• 21497199745920 backwards is 02954799179412
• The number of decimal digits it has is: 14
• The sum of 21497199745920's digits is 69
• More coming soon!