21040721990400

Names of 21040721990400

• Cardinal: 21040721990400 can be written as Twenty-one trillion, forty billion, seven hundred twenty-one million, nine hundred ninety thousand, four hundred.

Scientific notation

• Scientific notation: 2.10407219904 × 10¹³

Factors of 21040721990400

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 177

Divisors of 21040721990400

• Number of divisors d(n): 1728
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 25 28 29 30 32 35 40 42 48 49 50 56 58 60 64 70 75 80 84 87 96 98 100 105 112 116 120 128 131 140 145 147 150 160 168 174 175 192 196 200 203 210 224 232 240 245 256 262 280 290 294 300 320 336 343 348 350 384 392 393 400 406 420 435 448 464 480 490 524 525 560 580 588 600 609 640 655 672 686 696 700 725 735 768 784 786 800 812 840 841 870 896 917 928 960 980 1015 1029 1048 1050 1120 1160 1176 1200 1218 1225 1280 1310 1344 1372 1392 1400 1421 1450 1470 1568 1572 1600 1624 1680 1682 1715 1740 1792 1834 1856 1920 1960 1965 2030 2058 2096 2100 2175 2240 2320 2352 2400 2436 2450 2523 2620 2688 2744 2751 2784 2800 2842 2900 2940 3045 3136 3144 3200 3248 3275 3360 3364 3430 3480 3668 3675 3712 3799 3840 3920 3930 4060 4116 4192 4200 4205 4263 4350 4480 4585 4640 4704 4800 4872 4900 5046 5075 5145 5240 5376 5488 5502 5568 5600 5684 5800 5880 5887 6090 6272 6288 6400 6419 6496 6550 6720 6728 6860 6960 7105 7336 7350 7424 7598 7840 7860 8120 8232 8384 8400 8410 8526 8575 8700 8960 9170 9280 9408 9600 9744 9800 9825 9947 10092 10150 10290 10480 10976 11004 11136 11200 11368 11397 11600 11760 11774 12180 12544 12576 12615 12838 12992 13100 13440 13456 13720 13755 13920 14210 14672 14700 15196 15225 15680 15720 16240 16464 16768 16800 16820 17052 17150 17400 17661 18340 18560 18816 18995 19200 19257 19488 19600 19650 19894 20184 20300 20580 20960 21025 21315 21952 22008 22272 22400 22736 22794 22925 23200 23520 23548 24360 24389 25152 25230 25676 25725 25984 26200 26593 26880 26912 27440 27510 27840 28420 29344 29400 29435 29841 30392 30450 31360 31440 32095 32480 32928 33536 33600 33640 34104 34300 34800 35322 35525 36680 37120 37632 37990 38514 38976 39200 39300 39788 40368 40600 41160 41209 41920 42050 42630 43904 44016 44800 44933 45472 45588 45850 46400 47040 47096 48720 48778 49735 50304 50460 51352 51450 51968 52400 53186 53824 54880 55020 55680 56840 56985 58688 58800 58870 59682 60784 60900 62720 62880 63075 64190 64960 65856 67200 67280 68208 68600 68775 69600 70644 71050 73167 73360 75980 77028 77952 78400 78600 79576 79779 80736 81200 82320 82418 83840 84100 85260 87808 88032 88305 89866 90944 91176 91700 92800 94080 94192 94975 96285 97440 97556 99470 100608 100920 102704 102900 104800 106372 106575 107648 109760 110040 110171 111360 113680 113970 117376 117600 117740 119364 121568 121800 121945 123627 125760 126150 128380 129920 131712 132965 134400 134560 134799 136416 137200 137550 139200 141288 142100 146334 146720 147175 149205 151960 154056 155904 156800 157200 159152 159558 160475 161472 162400 164640 164836 167680 168200 170520 170723 176064 176610 179732 181888 182352 183400 185600 186151 188160 188384 189950 192570 194880 195112 198940 201840 205408 205800 206045 209600 212744 213150 215296 219520 220080 220342 224665 227360 227940 234752 235200 235480 238728 243136 243600 243890 247254 248675 251520 252300 256760 259840 263424 265930 269120 269598 272832 274400 275100 278400 282576 284200 284925 288463 292668 293440 294350 298410 303920 308112 313600 314400 318304 319116 320950 322944 324800 329280 329672 330513 336400 341040 341446 352128 353220 359464 363776 364704 365835 366800 372302 376768 379900 385140 389760 390224 397880 398895 403680 410816 411600 412090 419200 425488 426300 439040 440160 440684 441525 449330 454720 455880 470400 470960 477456 481425 486272 487200 487780 494508 497350 503040 504600 512169 513520 531860 538240 539196 545664 548800 550200 550855 556800 558453 565152 568400 569850 576926 585336 586880 588700 596820 607840 609725 616224 618135 628800 636608 638232 641900 645888 649600 658560 659344 661026 664825 672800 673995 682080 682892 704256 706440 718928 729408 731670 733600 744604 746025 753536 759800 770280 771197 779520 780448 795760 797790 807360 821632 823200 824180 838400 850976 852600 853615 865389 880320 881368 883050 898660 909440 911760 930755 940800 941920 954912 962850 972544 974400 975560 989016 994700 1009200 1024338 1027040 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3081120 3084788 3090675 3121792 3183040 3191160 3194959 3229440 3292800 3296720 3305130 3369975 3403904 3410400 3414460 3461556 3521280 3525472 3532200 3585183 3594640 3647040 3658350 3723020 3767680 3819648 3851400 3855985 3897600 3902240 3909171 3956064 3978800 3988950 4036800 4097352 4108160 4120900 4254880 4268075 4313568 4326945 4401600 4406840 4467624 4493300 4521216 4547200 4558800 4615408 4627182 4653775 4682688 4709600 4774560 4780244 4862720 4877800 4929792 4945080 5105856 5121690 5135200 5212228 5274752 5288208 5318600 5382400 5391960 5398379 5456640 5463136 5508550 5584530 5651520 5751424 5769260 5853360 5868800 5956832 5968200 5975305 6078400 6162240 6169576 6181350 6243584 6366080 6382320 6389918 6515285 6585600 6593440 6610260 6739950 6807808 6820800 6828920 6923112 7050944 7064400 7170366 7189280 7211575 7294080 7316700 7446040 7535360 7639296 7702800 7711970 7804480 7818342 7912128 7957600 7977900 8073600 8194704 8216320 8241800 8262825 8365427 8509760 8536150 8627136 8653890 8803200 8813680 8935248 8986600 9094400 9117600 9230816 9254364 9307550 9365376 9419200 9549120 9560488 9584877 9755600 9890160 10211712 10243380 10270400 10424456 10549504 10576416 10637200 10783920 10796758 10926272 11017100 11169060 11303040 11502848 11538520 11567955 11706720 11913664 11936400 11950610 12156800 12324480 12339152 12362700 12732160 12764640 12779836 12804225 13030570 13186880 13220520 13479900 13641600 13657840 13846224 13961325 14101888 14128800 14340732 14378560 14423150 14588160 14633400 14892080 15405600 15423940 15608960 15636684 15824256 15915200 15955800 15974795 16147200 16195137 16389408 16483600 16525650 16730854 17019520 17072300 17254272 17307780 17606400 17627360 17870496 17925915 17973200 18235200 18461632 18508728 18615100 18730752 18838400 19098240 19120976 19169754 19279925 19511200 19545855 19780320 20423424 20486760 20540800 20848912 21152832 21274400 21567840 21593516 21634725 21852544 22034200 22338120 22364713 22606080 23077040 23135910 23413440 23827328 23872800 23901220 24313600 24648960 24678304 24725400 25096281 25529280 25559672 25608450 26061140 26373760 26441040 26959800 26991895 27283200 27315680 27692448 27922650 28203776 28257600 28681464 28757120 28846300 29266800 29784160 29876525 30811200 30847880 31217920 31273368 31648512 31830400 31911600 31949590 32390274 32576425 32778816 32967200 33051300 33461708 34039040 34144600 34508544 34615560 35254720 35740992 35851830 35946400 36470400 36923264 37017456 37230200 37676800 37788653 38196480 38241952 38339508 38559850 39022400 39091710 39560640 40973520 41081600 41697824 41827135 42305664 42548800 43135680 43187032 43269450 43705088 44068400 44676240 44729426 46154080 46271820 46826880 47654656 47745600 47802440 47924385 49356608 49450800 50192562 51058560 51119344 51216900 52122280 52747520 52882080 53919600 53983790 54631360 55384896 55845300 56515200 57362928 57514240 57692600 57839775 58533600 59568320 59753050 61622400 61695760 62546736 63660800 63823200 63899180 64780548 65152850 65557632 65934400 66102600 66923416 67094139 68289200 69231120 70509440 71481984 71703660 71892800 72940800 73846528 74034912 74460400 75577306 76483904 76679016 77119700 78044800 78183420 79121280 79873975 80975685 81947040 83395648 83654270 84611328 85097600 86271360 86374064 86538900 88136800 89352480 89458852 89629575 92308160 92543640 93653760 95491200 95604880 95848770 97729275 98713216 98901600 100385124 102117120 102238688 102433800 104244560 105764160 107839200 107967580 109262720 110769792 111690600 111823565 113030400 113365959 114725856 115385200 115679550 117067200 119136640 119506100 123244800 123391520 125093472 125481405 127646400 127798360 129561096 130305700 131115264 131868800 132205200 133846832 134188278 134959475 136578400 138462240 141018880 142963968 143407320 143785600 148069824 148920800 151154612 152967808 153358032 154239400 156089600 156366840 156552991 158242560 159747950 161951370 163894080 166791296 167308540 170195200 172542720 172748128 173077800 176273600 178704960 178917704 179259150 184616320 185087280 188943265 190982400 191209760 191697540 195458550 197426432 197803200 200770248 204477376 204867600 208489120 209135675 211528320 215678400 215935160 218525440 221539584 223381200 223647130 226731918 229451712 230770400 231359100 234134400 238273280 239012200 239621925 246783040 250186944 250962810 255292800 255596720 259122192 260611400 263737600 264410400 267693664 268376556 269918950 273156800 276924480 286814640 287571200 296139648 297841600 302309224 305935616 306716064 308478800 312733680 313105982 319495900 323902740 327788160 333582592 334617080 335470695 345496256 346155600 352547200 357409920 357835408 358518300 369232640 370174560 377886530 382419520 383395080 390917100 395606400 401540496 404878425 408954752 409735200 416978240 418271350 423056640 431356800 431870320 446762400 447294260 453463836 458903424 461540800 462718200 468268800 469658973 478024400 479243850 493566080 500373888 501925620 510585600 511193440 518244384 521222800 528820800 535387328 536753112 539837900 546313600 553848960 559117825 566829795 573629280 592279296 595683200 604618448 613432128 616957600 625467360 626211964 627407025 638991800 647805480 655576320 669234160 670941390 690992512 692311200 705094400 714819840 715670816 717036600 740349120 755773060 764839040 766790160 781834200 782764955 791212800 803080992 809756850 817909504 819470400 833956480 836542700 862713600 863740640 893524800 894588520 906927672 917806848 923081600 925436400 939317946 944716325 956048800 958487700 987132160 1000747776 1003851240 1022386880 1036488768 1042445600 1057641600 1070774656 1073506224 1079675800 1092627200 1095870937 1107697920 1118235650 1133659590 1147258560 1191366400 1209236896 1226864256 1233915200 1250934720 1252423928 1254814050 1277983600 1295610960 1338468320 1341882780 1381985024 1384622400 1431341632 1434073200 1480698240 1511546120 1529678080 1533580320 1563668400 1565529910 1606161984 1619513700 1638940800 1667912960 1673085400 1677353475 1727481280 1787049600 1789177040 1813855344 1846163200 1850872800 1878635892 1889432650 1912097600 1916975400 2007702480 2044773760 2072977536 2084891200 2115283200 2141549312 2147012448 2159351600 2191741874 2236471300 2267319180 2294517120 2348294865 2418473792 2453728512 2467830400 2501869440 2504847856 2509628100 2555967200 2591221920 2676936640 2683765560 2769244800 2834148975 2862683264 2868146400 2961396480 3023092240 3067160640 3127336800 3131059820 3212323968 3239027400 3277881600 3287612811 3346170800 3354706950 3454962560 3574099200 3578354080 3627710688 3701745600 3757271784 3778865300 3824195200 3833950800 3913824775 4015404960 4089547520 4145955072 4169782400 4294024896 4318703200 4383483748 4472942600 4534638360 4589034240 4696589730 4836947584 4935660800 5003738880 5009695712 5019256200 5111934400 5182443840 5353873280 5367531120 5479354685 5538489600 5668297950 5725366528 5736292800 6046184480 6134321280 6254673600 6262119640 6424647936 6478054800 6575225622 6692341600 6709413900 6909925120 7156708160 7255421376 7403491200 7514543568 7557730600 7648390400 7667901600 7827649550 8030809920 8339564800 8588049792 8637406400 8766967496 8945885200 9069276720 9393179460 9673895168 10019391424 10038512400 10223868800 10364887680 10707746560 10735062240 10958709370 11336595900 11472585600 11741474325 12092368960 12268642560 12509347200 12524239280 12956109600 13150451244 13384683200 13418827800 14313416320 14510842752 14806982400 15029087136 15115461200 15335803200 15655299100 16061619840 16438064055 17176099584 17274812800 17533934992 17891770400 18138553440 18786358920 20038782848 20077024800 20447737600 20729775360 21470124480 21917418740 22673191800 22945171200 23482948650 24184737920 25018694400 25048478560 25912219200 26300902488 26769366400 26837655600 27396773425 28626832640 29021685504 30058174272 30230922400 30671606400 31310598200 32123239680 32876128110 34549625600 35067869984 35783540800 36277106880 37572717840 40077565696 40154049600 42940248960 43834837480 45346383600 46965897300 48369475840 50096957120 51824438400 52601804976 53538732800 53675311200 54793546850 60116348544 60461844800 61343212800 62621196400 65752256220 70135739968 71567081600 72554213760 75145435680 80308099200 82190320275 85880497920 87669674960 90692767200 93931794600 100193914240 103648876800 105203609952 107350622400 109587093700 120232697088 120923689600 125242392800 131504512440 140271479936 143134163200 145108427520 150290871360 160616198400 164380640550 175339349920 181385534400 187863589200 200387828480 210407219904 214701244800 219174187400 241847379200 250484785600 263009024880 280542959872 300581742720 328761281100 350678699840 362771068800 375727178400 420814439808 429402489600 438348374800 500969571200 526018049760 601163485440 657522562200 701357399680 725542137600 751454356800 841628879616 876696749600 1001939142400 1052036099520 1315045124400 1402714799360 1502908713600 1753393499200 2104072199040 2630090248800 3005817427200 3506786998400 4208144398080 5260180497600 7013573996800 10520360995200 21040721990400
• Sum of all divisors σ(n): 84510340992000
• Sum of proper divisors (its aliquot sum) s(n): 63469619001600
• 21040721990400 is an abundant number, because the sum of its proper divisors (63469619001600) is greater than itself. Its abundance is 42428897011200

Bases of 21040721990400

• Binary: 100110010001011101100110000101001001100000000₂
• Hexadecimal: 0x1322ECC29300
• Base-36: 7GHZ2M8LC

Squares and roots of 21040721990400

• 21040721990400 squared (21040721990400²) is 442711981877302137692160000
• 21040721990400 cubed (21040721990400³) is 9314979732499317363164359617675264000000
• The square root of 21040721990400 is 4587016.6764902871
• The cube root of 21040721990400 is 27607.0634053661

Scales and comparisons

• 21,040,721,990,400 seconds is equal to 669,029 years, 45 weeks, 3 days, 21 hours, 20 minutes.
• To count from 1 to 21,040,721,990,400 would take you about one million, six hundred seventy-two thousand, five hundred seventy-four 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 21040721990400 cubic inches would be around 2300.6 feet tall.

Recreational maths with 21040721990400

• 21040721990400 backwards is 00409912704012
• The number of decimal digits it has is: 14
• The sum of 21040721990400's digits is 39
• More coming soon!