21009490943905000

Names of 21009490943905000

• Cardinal: 21009490943905000 can be written as Twenty-one quadrillion, nine trillion, four hundred ninety billion, nine hundred forty-three million, nine hundred five thousand.

Scientific notation

• Scientific notation: 2.1009490943905 × 10¹⁶

Factors of 21009490943905000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 108

Divisors of 21009490943905000

• Number of divisors d(n): 800
• Complete list of divisors:
  1 2 4 5 8 10 17 20 25 34 37 40 47 50 68 74 85 94 100 125 136 148 170 185 188 200 235 250 296 340 370 376 425 470 500 625 629 680 740 799 850 925 940 1000 1175 1250 1258 1369 1480 1598 1700 1739 1850 1880 2125 2209 2350 2500 2516 2738 3145 3196 3400 3478 3700 3995 4250 4418 4625 4700 5000 5032 5476 5875 6290 6392 6845 6956 7400 7990 8500 8695 8836 9250 9400 10625 10952 11045 11750 12580 13690 13912 15725 15980 17000 17390 17672 18500 19975 21250 22090 23125 23273 23500 25160 27380 29375 29563 31450 31960 34225 34780 37000 37553 39950 42500 43475 44180 46250 46546 47000 50653 54760 55225 58750 59126 62900 64343 68450 69560 75106 78625 79900 81733 85000 86950 88360 92500 93092 99875 101306 103823 110450 116365 117500 118252 125800 128686 136900 147815 150212 157250 159800 163466 171125 173900 185000 186184 187765 199750 202612 207646 217375 220900 232730 235000 236504 253265 257372 273800 276125 295630 300424 314500 321715 326932 342250 347800 375530 393125 399500 405224 408665 415292 434750 441800 465460 499375 506530 514744 519115 552250 581825 591260 629000 643430 653864 684500 739075 751060 786250 799000 817330 830584 855625 861101 869500 930920 938825 998750 1013060 1038230 1086875 1093831 1104500 1163650 1182520 1266325 1286860 1369000 1380625 1389461 1478150 1502120 1572500 1608575 1634660 1711250 1722202 1739000 1764991 1877650 1997500 2026120 2043325 2076460 2173750 2187662 2209000 2327300 2380691 2532650 2573720 2595575 2761250 2778922 2909125 2956300 3024121 3145000 3217150 3269320 3422500 3444404 3529982 3695375 3755300 3841451 3995000 4086650 4152920 4305505 4347500 4375324 4654600 4694125 4761382 4879681 5065300 5191150 5469155 5522500 5557844 5818250 5912600 6048242 6331625 6434300 6845000 6888808 6947305 7059964 7390750 7510600 7682902 8042875 8173300 8611010 8695000 8750648 8824955 9388250 9522764 9759362 10130600 10216625 10382300 10938310 11045000 11115688 11636500 11903455 12096484 12663250 12868600 12977875 13894610 14119928 14545625 14781500 15120605 15365804 16085750 16346600 17222020 17649910 18476875 18776500 19045528 19207255 19518724 20433250 20764600 21527525 21876620 23273000 23470625 23806910 24192968 24398405 25326500 25955750 27345775 27789220 29091250 29563000 30241210 30731608 31658125 32171500 34444040 34736525 35299820 36953750 37553000 38414510 39037448 40214375 40471747 40866500 43055050 43753240 44124775 46941250 47613820 48796810 50653000 51083125 51410057 51911500 54691550 55578440 58182500 59517275 60482420 63316250 64343000 64889375 65304667 69473050 70599640 73907500 75603025 76829020 80428750 80943494 81733000 82954577 86110100 88249550 93882500 95227640 96036275 97593620 102166250 102820114 103823000 107637625 109383100 111892477 116365000 119034550 120964840 121992025 126632500 129778750 130609334 136728875 138946100 142133687 147815000 151206050 153658040 160857500 161886988 165909154 172220200 173682625 176499100 180548197 187765000 192072550 195187240 202358735 204332500 205640228 215275250 218766200 220623875 223784954 238069100 243984050 253265000 257050285 259557500 261218668 273457750 277892200 284267374 297586375 302412100 321715000 323773976 326523335 331818308 347365250 352998200 361096394 378015125 384145100 404717470 408665000 411280456 414772885 430550500 441247750 447569908 476138200 480181375 487968100 514100570 519115000 522437336 538188125 546915500 559462385 568534748 595172750 604824200 609960125 653046670 663636616 683644375 694730500 710668435 722192788 756030250 768290200 809434940 829545770 861101000 868413125 882495500 895139816 902740985 960362750 975936200 1011793675 1028201140 1076376250 1093831000 1103119375 1118924770 1137069496 1190345500 1219920250 1285251425 1306093340 1367288750 1389461000 1421336870 1444385576 1487931875 1512060500 1618869880 1632616675 1659091540 1736826250 1764991000 1805481970 1890075625 1902172109 1920725500 2023587350 2056402280 2073864425 2152752500 2206238750 2237849540 2380691000 2400906875 2416272679 2439840500 2570502850 2612186680 2734577500 2797311925 2842673740 2975863750 3024121000 3049800625 3069319349 3265233350 3318183080 3473652500 3553342175 3610963940 3780151250 3804344218 3841451000 4047174700 4147728850 4305505000 4412477500 4475699080 4513704925 4801813750 4832545358 4879681000 5058968375 5141005700 5258946419 5469155000 5594623850 5685347480 5951727500 6099601250 6138638698 6426257125 6530466700 6680283289 6947305000 7106684350 7221927880 7560302500 7608688436 8094349400 8163083375 8295457700 8824955000 9027409850 9510860545 9603627500 9665090716 10117936750 10282011400 10369322125 10517892838 11189247700 11903455000 12081363395 12199202500 12277277396 12852514250 13060933400 13360566578 13986559625 14213368700 15120605000 15217376872 15346596745 16326166750 16590915400 17766710875 18054819700 19021721090 19207255000 19330181432 20235873500 20738644250 21035785676 22378495400 22568524625 24162726790 24398405000 24554554792 25294841875 25705028500 26294732095 26721133156 27973119250 28426737400 30693193490 32131285625 32652333500 33401416445 35533421750 36109639400 38043442180 40471747000 40815416875 41477288500 42071571352 45137049250 47554302725 48325453580 50589683750 51410057000 51846610625 52589464190 53442266312 55946238500 60406816975 61386386980 64262571250 65304667000 66802832890 69932798125 71066843500 76086884360 76732983725 81630833750 82954577000 88833554375 89402089123 90274098500 95108605450 96650907160 101179367500 103693221250 105178928380 111892477000 112842623125 113564815913 120813633950 122772773960 128525142500 131473660475 133605665780 139865596250 142133687000 153465967450 163261667500 167007082225 177667108750 178804178246 180548197000 190217210900 202358735000 207386442500 210357856760 225685246250 227129631826 237771513625 241627267900 247170481693 257050285000 262947320950 267211331560 279731192500 302034084875 306931934900 326523335000 334014164450 355334217500 357608356492 380434421800 383664918625 414772885000 447010445615 451370492500 454259263652 475543027250 483254535800 494340963386 525894641900 559462385000 567824079565 604068169750 613863869800 657368302375 668028328900 710668435000 715216712984 767329837250 835035411125 894020891230 902740985000 908518527304 951086054500 988681926772 1051789283800 1135648159130 1188857568125 1208136339500 1235852408465 1314736604750 1336056657800 1510170424375 1534659674500 1670070822250 1788041782460 1902172109000 1918324593125 1977363853544 2235052228075 2271296318260 2377715136250 2416272679000 2471704816930 2629473209500 2839120397825 3020340848750 3069319349000 3286841511875 3340141644500 3576083564920 3836649186250 4175177055625 4201898188781 4470104456150 4542592636520 4755430272500 4943409633860 5258946419000 5678240795650 6040681697500 6179262042325 6573683023750 6680283289000 7673298372500 8350354111250 8403796377562 8940208912300 9510860545000 9886819267720 11175261140375 11356481591300 12081363395000 12358524084650 13147366047500 14195601989125 15346596745000 16700708222500 16807592755124 17880417824600 21009490943905 22350522280750 22712963182600 24717048169300 26294732095000 28391203978250 30896310211625 33401416445000 33615185510248 42018981887810 44701044561500 49434096338600 55876305701875 56782407956500 61792620423250 70978009945625 84037963775620 89402089123000 105047454719525 111752611403750 113564815913000 123585240846500 141956019891250 154481551058125 168075927551240 210094909439050 223505222807500 247170481693000 283912039782500 308963102116250 420189818878100 447010445615000 525237273597625 567824079565000 617926204232500 840379637756200 1050474547195250 1235852408465000 2100949094390500 2626186367988125 4201898188781000 5252372735976250 10504745471952500 21009490943905000
• Sum of all divisors σ(n): 54733146792964200
• Sum of proper divisors (its aliquot sum) s(n): 33723655849059200
• 21009490943905000 is an abundant number, because the sum of its proper divisors (33723655849059200) is greater than itself. Its abundance is 12714164905154200

Bases of 21009490943905000

• Binary: 1001010101001000000010101001100100111111000110011101000₂
• Hexadecimal: 0x4AA4054C9F8CE8
• Base-36: 5QV8QWB0PNS

Squares and roots of 21009490943905000

• 21009490943905000 squared (21009490943905000²) is 441398709722026207856649025000000
• 21009490943905000 cubed (21009490943905000³) is 9273562194556261493871336851177547942625000000000
• The square root of 21009490943905000 is 144946510.6303183831
• The cube root of 21009490943905000 is 275933.9745442225

Scales and comparisons

• 21,009,490,943,905,000 seconds is equal to 668,036,825 years, 20 weeks, 3 days, 8 hours, 16 minutes, 40 seconds.
• To count from 1 to 21,009,490,943,905,000 would take you about two billion, four million, one hundred ten thousand, four hundred seventy-six 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 21009490943905000 cubic inches would be around 22994.5 feet tall.

Recreational maths with 21009490943905000

• 21009490943905000 backwards is 00050934909490012
• The number of decimal digits it has is: 17
• The sum of 21009490943905000's digits is 55
• More coming soon!