21681222717440

Names of 21681222717440

• Cardinal: 21681222717440 can be written as Twenty-one trillion, six hundred eighty-one billion, two hundred twenty-two million, seven hundred seventeen thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.168122271744 × 10¹³

Factors of 21681222717440

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 3116

Divisors of 21681222717440

• Number of divisors d(n): 832
• Complete list of divisors:
  1 2 4 5 8 10 11 13 16 20 22 23 26 32 40 44 46 52 55 64 65 80 88 92 104 109 110 115 128 130 143 160 176 184 208 218 220 230 253 256 260 286 299 320 352 368 416 436 440 460 506 512 520 545 572 598 640 704 715 736 832 872 880 920 1012 1024 1040 1090 1144 1196 1199 1265 1280 1408 1417 1430 1472 1495 1664 1744 1760 1840 2024 2048 2080 2180 2288 2392 2398 2507 2530 2560 2816 2834 2860 2944 2953 2990 3289 3328 3488 3520 3680 4048 4096 4160 4360 4576 4784 4796 5014 5060 5120 5632 5668 5720 5888 5906 5980 5995 6578 6656 6976 7040 7085 7360 8096 8320 8720 9152 9568 9592 10028 10120 10240 11264 11336 11440 11776 11812 11960 11990 12535 13156 13312 13952 14080 14170 14720 14765 15587 16192 16445 16640 17440 18304 19136 19184 20056 20240 20480 22528 22672 22880 23552 23624 23920 23980 25070 26312 26624 27577 27904 28160 28340 29440 29530 31174 32384 32483 32591 32890 33280 34880 36608 38272 38368 38389 40112 40480 45056 45344 45760 47104 47248 47840 47960 50140 52624 53248 55154 55808 56320 56680 58880 59060 62348 64768 64966 65182 65780 66560 67919 69760 73216 76544 76736 76778 77935 80224 80960 90688 91520 94208 94496 95680 95920 100280 105248 110308 111616 112640 113360 117760 118120 124696 129536 129932 130364 131560 133120 135838 137885 139520 146432 153088 153472 153556 155870 160448 161920 162415 162955 181376 183040 188992 191360 191840 191945 200560 210496 220616 223232 225280 226720 235520 236240 249392 259072 259864 260728 263120 266240 271676 275770 279040 292864 306176 306944 307112 311740 320896 321877 323840 324830 325910 339595 358501 362752 366080 377984 382720 383680 383890 401120 420992 422279 441232 446464 453440 471040 472480 498784 518144 519728 521456 526240 543352 551540 558080 585728 612352 613888 614224 623480 641792 643754 647680 649660 651820 679190 717002 725504 732160 747109 755968 765440 767360 767780 802240 841984 844558 882464 882947 906880 944960 997568 1036288 1039456 1042912 1052480 1086704 1103080 1116160 1224704 1227776 1228448 1246960 1283584 1287508 1295360 1299320 1303640 1358380 1434004 1451008 1464320 1494218 1511936 1530880 1534720 1535560 1604480 1609385 1683968 1689116 1764928 1765894 1792505 1813760 1889920 1995136 2078912 2085824 2104960 2111395 2173408 2206160 2232320 2455552 2456896 2493920 2567168 2575016 2590720 2598640 2607280 2716760 2868008 2902016 2928640 2988436 3023872 3061760 3069440 3071120 3208960 3218770 3367936 3378232 3529856 3531788 3540647 3585010 3627520 3735545 3779840 3990272 4157824 4171648 4184401 4209920 4222790 4346816 4412320 4414735 4911104 4913792 4987840 5134336 5150032 5181440 5197280 5214560 5433520 5736016 5804032 5976872 6047744 6123520 6138880 6142240 6417920 6437540 6735872 6756464 7059712 7063576 7081294 7170020 7255040 7403171 7471090 7559680 7980544 8315648 8343296 8368802 8419840 8445580 8693632 8824640 8829470 9712417 9827584 9975680 10268672 10300064 10394560 10429120 10867040 11472032 11953744 12095488 12277760 12284480 12835840 12875080 13471744 13512928 14119424 14127152 14162588 14340040 14510080 14806342 14942180 15119360 15961088 16631296 16686592 16737604 16839680 16891160 17387264 17649280 17658940 17703235 19424834 19655168 19951360 20600128 20789120 20858240 20922005 21734080 22944064 23907488 24555520 24568960 25671680 25750160 27025856 28238848 28254304 28325176 28680080 29020160 29612684 29884360 30238720 31922176 33262592 33373184 33475208 33679360 33782320 34774528 35298560 35317880 35406470 37015855 38849668 39310336 39902720 41200256 41578240 41716480 41844010 43468160 45888128 46028411 47814976 48562085 49137920 51343360 51500320 54051712 56477696 56508608 56650352 57360160 59225368 59768720 60477440 63844352 66525184 66746368 66950416 67358720 67564640 69549056 70597120 70635760 70812940 74031710 77699336 78620672 79805440 81434881 82400512 83156480 83432960 83688020 86936320 91776256 92056822 95629952 96241223 97124170 98275840 103000640 108103424 112955392 113017216 113300704 114720320 118450736 119537440 133050368 133492736 133900832 135129280 139098112 141194240 141271520 141625880 148063420 155398672 157241344 159610880 162869762 164801024 166312960 166865920 167376040 173872640 183552512 184113644 191259904 192482446 194248340 196551680 206001280 216206848 226034432 226601408 229440640 230142055 236901472 239074880 267801664 270258560 278196224 282388480 282543040 283251760 296126840 310797344 319221760 325739524 329602048 332625920 333731840 334752080 347745280 367105024 368227288 382519808 384964892 388496680 393103360 407174405 412002560 432413696 452068864 453202816 458881280 460284110 473802944 478149760 481206115 535603328 540517120 564776960 565086080 566503520 592253680 621594688 651479048 659204096 665251840 667463680 669504160 695490560 734210048 736454576 765039616 769929784 776993360 786206720 814348810 824005120 864827392 904137728 906405632 917762560 920568220 947605888 956299520 962412230 1058653453 1071206656 1081034240 1130172160 1133007040 1184507360 1243189376 1302958096 1318408192 1339008320 1390981120 1468420096 1472909152 1530079232 1539859568 1553986720 1628697620 1648010240 1729654784 1808275456 1812811264 1835525120 1841136440 1895211776 1912599040 1924824460 2117306906 2142413312 2162068480 2260344320 2266014080 2369014720 2486378752 2605916192 2678016640 2945818304 3060158464 3079719136 3107973440 3257395240 3296020480 3616550912 3625622528 3671050240 3682272880 3790423552 3825198080 3849648920 4234613812 4284826624 4324136960 4520688640 4532028160 4738029440 4972757504 5211832384 5293267265 5356033280 5891636608 6159438272 6215946880 6514790480 6592040960 7251245056 7342100480 7364545760 7580847104 7650396160 7699297840 8469227624 8569653248 8648273920 9041377280 9064056320 9476058880 9945515008 10423664768 10586534530 10712066560 11783273216 12318876544 12431893760 13029580960 14502490112 14729091520 15161694208 15300792320 15398595680 16938455248 17139306496 18082754560 18128112640 18952117760 19891030016 20847329536 21173069060 21424133120 23566546432 24637753088 24863787520 26059161920 29458183040 30323388416 30797191360 33876910496 36256225280 37904235520 39782060032 41694659072 42346138120 42848266240 47133092864 49275506176 49727575040 52118323840 58916366080 61594382720 67753820992 72512450560 75808471040 83389318144 84692276240 85696532480 94266185728 98551012352 99455150080 104236647680 117832732160 123188765440 135507641984 151616942080 166778636288 169384552480 188532371456 197102024704 198910300160 208473295360 235665464320 246377530880 271015283968 333557272576 338769104960 394204049408 416946590720 471330928640 492755061760 542030567936 677538209920 833893181440 942661857280 985510123520 1084061135872 1355076419840 1667786362880 1971020247040 2168122271744 2710152839680 4336244543488 5420305679360 10840611358720 21681222717440
• Sum of all divisors σ(n): 64389028999680
• Sum of proper divisors (its aliquot sum) s(n): 42707806282240
• 21681222717440 is an abundant number, because the sum of its proper divisors (42707806282240) is greater than itself. Its abundance is 21026583564800

Bases of 21681222717440

• Binary: 100111011100000001101100101000001000000000000₂
• Hexadecimal: 0x13B80D941000
• Base-36: 7OO7S7OJK

Squares and roots of 21681222717440

• 21681222717440 squared (21681222717440²) is 470075418523236338080153600
• 21681222717440 cubed (21681222717440³) is 10191809842996107469693542387924598784000
• The square root of 21681222717440 is 4656309.9894057741
• The cube root of 21681222717440 is 27884.3969733611

Scales and comparisons

• 21,681,222,717,440 seconds is equal to 689,395 years, 42 weeks, 3 days, 17 hours, 57 minutes, 20 seconds.
• To count from 1 to 21,681,222,717,440 would take you about one million, seven hundred twenty-three thousand, four hundred eighty-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 21681222717440 cubic inches would be around 2323.7 feet tall.

Recreational maths with 21681222717440

• 21681222717440 backwards is 04471722218612
• The number of decimal digits it has is: 14
• The sum of 21681222717440's digits is 47
• More coming soon!