21187408919040

Names of 21187408919040

• Cardinal: 21187408919040 can be written as Twenty-one trillion, one hundred eighty-seven billion, four hundred eight million, nine hundred nineteen thousand and forty.

Scientific notation

• Scientific notation: 2.118740891904 × 10¹³

Factors of 21187408919040

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 2043

Divisors of 21187408919040

• Number of divisors d(n): 1920
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 18 20 21 24 26 28 30 31 32 35 36 39 40 42 45 48 52 56 60 62 63 64 65 70 72 78 80 84 90 91 93 96 104 105 112 117 120 124 126 128 130 140 144 155 156 160 168 180 181 182 186 192 195 208 210 217 224 234 240 248 252 256 260 273 279 280 288 310 312 315 320 336 360 362 364 372 384 390 403 416 420 434 448 455 465 468 480 496 504 512 520 543 546 558 560 576 585 620 624 630 640 651 672 720 724 728 744 768 780 806 819 832 840 868 896 905 910 930 936 960 992 1008 1040 1085 1086 1092 1116 1120 1152 1170 1209 1240 1248 1260 1267 1280 1302 1344 1365 1395 1440 1448 1456 1488 1536 1560 1612 1629 1638 1664 1680 1736 1792 1801 1810 1820 1860 1872 1920 1953 1984 2015 2016 2080 2170 2172 2184 2232 2240 2304 2340 2353 2418 2480 2496 2520 2534 2560 2604 2688 2715 2730 2790 2821 2880 2896 2912 2976 3120 3224 3255 3258 3276 3328 3360 3472 3584 3602 3620 3627 3640 3720 3744 3801 3840 3906 3968 4030 4032 4095 4160 4340 4344 4368 4464 4480 4608 4680 4706 4836 4960 4992 5040 5068 5208 5376 5403 5430 5460 5580 5611 5642 5760 5792 5824 5952 6045 6240 6335 6448 6510 6516 6552 6656 6720 6944 7059 7204 7240 7254 7280 7440 7488 7602 7680 7812 7936 8060 8064 8145 8190 8320 8463 8680 8688 8736 8928 8960 9005 9360 9412 9672 9765 9920 9984 10080 10136 10416 10752 10806 10860 10920 11160 11222 11284 11403 11520 11584 11648 11765 11904 12090 12480 12607 12670 12896 13020 13032 13104 13440 13888 14105 14118 14408 14480 14508 14560 14880 14976 15204 15624 15872 16120 16128 16209 16290 16380 16471 16640 16833 16926 17360 17376 17472 17856 17920 18010 18135 18720 18824 19005 19344 19530 19840 19968 20160 20272 20832 21177 21612 21720 21840 22320 22444 22568 22806 23040 23168 23296 23413 23530 23808 24180 24960 25214 25340 25389 25792 26040 26064 26208 26880 27015 27776 28055 28210 28236 28816 28960 29016 29120 29760 29952 30408 31248 32240 32256 32418 32580 32760 32942 33280 33666 33852 34720 34752 34944 35295 35712 36020 36270 37440 37648 37821 38010 38688 39060 39277 39680 40320 40544 41664 42315 42354 43224 43440 43680 44640 44888 45136 45612 46336 46592 46826 47060 47616 48360 49413 49920 50428 50499 50680 50778 51584 52080 52128 52416 53760 54030 55552 55831 56110 56420 56472 57015 57632 57920 58032 58240 59520 59904 60816 62496 63035 64480 64836 65160 65520 65884 67332 67704 69440 69504 69888 70239 70590 71424 72040 72540 72943 74880 75296 75642 76020 77376 78120 78554 79360 80640 81045 81088 82355 83328 84165 84630 84708 86448 86880 87360 89280 89776 90272 91224 92672 93652 94120 96720 98826 99840 100856 100998 101360 101556 103168 104160 104256 104832 105885 108060 111104 111662 112220 112840 112944 113463 114030 115264 115840 116064 116480 117065 117831 119040 121632 124992 126070 126945 128960 129672 130320 131040 131768 134664 135408 138880 139008 139776 140478 141180 142848 144080 145080 145886 148239 149760 150592 151284 152040 154752 156240 157108 161280 162090 162176 163891 164710 166656 167493 168330 169260 169416 172896 173760 174720 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1627297152 1642944240 1672250112 1680606720 1697709048 1752473856 1779856260 1800884736 1818973980 1829023560 1839184802 1858055680 1877650560 1888024320 1898513344 1940238912 1950958464 1960707840 1970555145 2034121440 2090312640 2101925488 2122136310 2135827512 2169729536 2190592320 2251105920 2263612064 2352849408 2364666174 2373141680 2425298640 2438698080 2440945728 2503534080 2546563572 2586985216 2601277952 2627406860 2628710784 2669784390 2712161920 2758777203 2787083520 2829515080 2847770016 2910358368 2920789760 2926437696 2941061760 3001474560 3051182160 3152888232 3183204465 3233731520 3251597440 3254594304 3285888480 3344500224 3395418096 3504947712 3559712520 3637947960 3658047120 3678369604 3755301120 3776048640 3797026688 3880477824 3901916928 3921415680 3941110290 4068242880 4180625280 4203850976 4244272620 4271655024 4381184640 4502211840 4527224128 4597962005 4729332348 4746283360 4850597280 4877396160 4881891456 5093127144 5173970432 5254813720 5257421568 5339568780 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22070217624 22636120640 22782160128 23282866944 23411501568 23646661740 24409457280 25223105856 25465635720 25869852160 26287107840 27163344768 27587772030 28477700160 29103583680 29264376960 29426956832 31528882320 32545943040 33105326436 33630807808 33954180960 34173240192 36217793024 36783696040 37834658784 37970266880 38804778240 39019169280 40745017152 41381658045 42038509760 42716550240 44140435248 45272241280 45564320256 46565733888 47293323480 48818914560 50446211712 50931271440 52574215680 54326689536 55175544060 56955400320 58207167360 58528753920 58853913664 63057764640 66210652872 67261615616 67908361920 68346480384 73567392080 75669317568 75940533760 77609556480 81490034304 82763316090 84077019520 85433100480 88280870496 90544482560 94586646960 97637829120 100892423424 101862542880 108653379072 110351088120 113910800640 116414334720 117057507840 117707827328 126115529280 132421305744 135816723840 136692960768 147134784160 151338635136 162980068608 165526632180 168154039040 170866200960 176561740992 181088965120 189173293920 201784846848 203725085760 220702176240 227821601280 232828669440 235415654656 252231058560 264842611488 271633447680 294269568320 302677270272 325960137216 331053264360 336308078080 341732401920 353123481984 378346587840 407450171520 441404352480 470831309312 504462117120 529685222976 543266895360 588539136640 605354540544 662106528720 683464803840 706246963968 756693175680 814900343040 882808704960 1008924234240 1059370445952 1177078273280 1324213057440 1412493927936 1513386351360 1629800686080 1765617409920 2118740891904 2354156546560 2648426114880 3026772702720 3531234819840 4237481783808 5296852229760 7062469639680 10593704459520 21187408919040
• Sum of all divisors σ(n): 93791700946944
• Sum of proper divisors (its aliquot sum) s(n): 72604292027904
• 21187408919040 is an abundant number, because the sum of its proper divisors (72604292027904) is greater than itself. Its abundance is 51416883108864

Bases of 21187408919040

• Binary: 100110100010100010011111110110111101000000000₂
• Hexadecimal: 0x134513FB7A00
• Base-36: 7IDD08740

Squares and roots of 21187408919040

• 21187408919040 squared (21187408919040²) is 448906296702615741274521600
• 21187408919040 cubed (21187408919040³) is 9511161274570217299177700004949131264000
• The square root of 21187408919040 is 4602978.2661924443
• The cube root of 21187408919040 is 27671.0697789487

Scales and comparisons

• 21,187,408,919,040 seconds is equal to 673,694 years, 3 weeks, 3 days, 6 hours, 24 minutes.
• To count from 1 to 21,187,408,919,040 would take you about one million, six hundred eighty-four thousand, two hundred thirty-five 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 21187408919040 cubic inches would be around 2305.9 feet tall.

Recreational maths with 21187408919040

• 21187408919040 backwards is 04091980478112
• The number of decimal digits it has is: 14
• The sum of 21187408919040's digits is 54
• More coming soon!