21381128923440

Names of 21381128923440

• Cardinal: 21381128923440 can be written as Twenty-one trillion, three hundred eighty-one billion, one hundred twenty-eight million, nine hundred twenty-three thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.138112892344 × 10¹³

Factors of 21381128923440

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 16099

Divisors of 21381128923440

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 13 15 16 20 22 24 26 30 31 33 39 40 44 48 52 55 60 62 65 66 78 80 88 93 97 104 110 120 124 130 132 143 155 156 165 169 176 186 194 195 208 220 240 248 260 264 286 291 310 312 330 338 341 372 388 390 403 429 440 465 485 496 507 520 528 572 582 620 624 660 676 682 715 744 776 780 806 845 858 880 930 970 1014 1023 1040 1067 1144 1164 1209 1240 1261 1320 1352 1364 1430 1455 1488 1552 1560 1612 1690 1705 1716 1859 1860 1940 2015 2028 2046 2134 2145 2288 2328 2418 2480 2522 2535 2640 2704 2728 2860 2910 3007 3120 3201 3224 3380 3410 3432 3718 3720 3783 3880 4030 4056 4092 4268 4290 4433 4656 4836 5044 5070 5115 5239 5335 5456 5577 5720 5820 6014 6045 6305 6402 6448 6760 6820 6864 7436 7440 7566 7760 8060 8112 8184 8536 8580 8866 9021 9295 9672 10088 10140 10230 10478 10670 11154 11440 11640 12028 12090 12610 12804 13299 13520 13640 13871 14872 15035 15132 15717 15937 16005 16120 16368 16393 17072 17160 17732 18042 18590 18915 19344 20176 20280 20460 20956 21340 22165 22308 23280 24056 24180 25220 25608 26195 26598 27280 27742 27885 29744 30070 30264 31434 31874 32010 32240 32786 33077 34320 35464 36084 37180 37830 39091 40560 40920 41613 41912 42680 44330 44616 45105 47811 48112 48360 49179 50440 51216 52390 53196 55484 55770 57629 60140 60528 62868 63748 64020 65572 66154 66495 69355 70928 72168 74360 75660 78182 78585 79685 81840 81965 83226 83824 85360 88660 89232 90210 95622 96720 98358 99231 100880 104780 106392 110968 111540 115258 117273 120280 125736 127496 128040 131144 132308 132990 138710 144336 148720 151320 156364 157170 159370 163930 165385 166452 172887 175307 177320 180323 180420 191244 195455 196716 198462 207181 208065 209560 212784 221936 223080 230516 234546 239055 240560 245895 251472 254992 256080 262288 264616 265980 277420 288145 302640 312728 314340 318740 327860 330770 332904 345774 350614 354640 360646 360840 382488 390910 393432 396924 414362 416130 419120 430001 446160 461032 469092 478110 491790 494047 496155 508183 525921 529232 531960 540969 554840 576290 586365 621543 625456 628680 637480 655720 661540 665808 691548 701228 721292 721680 764976 781820 786864 793848 828724 832260 860002 864435 876535 901615 922064 938184 956220 983580 988094 992310 1016366 1035905 1051842 1063920 1081938 1109680 1152580 1172730 1243086 1257360 1274960 1290003 1311440 1323080 1383096 1402456 1442584 1482141 1524549 1545889 1563640 1587696 1657448 1664520 1720004 1728870 1753070 1803230 1876368 1912440 1967160 1976188 1984620 2032732 2071810 2103684 2150005 2163876 2278991 2305160 2345460 2470235 2486172 2540915 2580006 2629605 2646160 2693353 2704845 2766192 2804912 2885168 2964282 3049098 3091778 3107715 3127280 3314896 3329040 3440008 3457740 3506140 3606460 3824880 3934320 3952376 3969240 4065464 4143620 4207368 4300010 4327752 4557982 4610320 4637667 4690920 4940470 4972344 5081830 5160012 5259210 5386706 5409690 5434517 5590013 5928564 6098196 6183556 6215430 6422611 6450015 6836973 6880016 6915480 7012280 7212920 7410705 7622745 7729445 7904752 7938480 8080059 8130928 8287240 8414736 8600020 8655504 9115964 9275334 9381840 9880940 9944688 10163660 10320024 10518420 10773412 10819380 10869034 11180026 11394955 11857128 12196392 12367112 12430860 12845222 12900030 13466765 13673946 13830960 14024560 14425840 14821410 15245490 15458890 16160118 16303551 16574480 16770039 17004779 17200040 18231928 18550668 19267833 19761880 20096557 20327320 20640048 21036840 21546824 21638760 21738068 22360052 22789910 23188335 23714256 24392784 24734224 24861720 25690444 25800060 26933530 27172585 27347892 27950065 29626883 29642820 30490980 30917780 32113055 32320236 32607102 33540078 34009558 34184865 34400080 36463856 37101336 38535666 39523760 40193114 40400295 40654640 42073680 43093648 43277520 43476136 44720104 45579820 46376670 47922559 49723440 51014337 51380888 51600120 53867060 54345170 54695784 55900130 59253766 59285640 60289671 60981960 61835560 64226110 64640472 65214204 67080156 68019116 68369730 70648721 74202672 77071332 80386228 80800590 81517755 83493943 83850195 85023895 86952272 88880649 89440208 91159640 92753340 95845118 96339165 100482785 102028674 102761776 103200240 107734120 108690340 109391568 111800260 118507532 118571280 120579342 121963920 123671120 128452220 129280944 130428408 134160312 136038232 136739460 141297442 143767677 148134415 154142664 160772456 161601180 163035510 166987886 167700390 170047790 177761298 182319280 185506680 191690236 192678330 200965570 204057348 211946163 215468240 217380680 221062127 223600520 237015064 239612795 241158684 250481829 255071685 256904440 260856816 261255241 268320624 272076464 273478920 282594884 287535354 296268830 301448355 308285328 321544912 323202360 326071020 333975772 335400780 340095580 353243605 355522596 371013360 383380472 385356660 401931140 408114696 417469715 423892326 434761360 442124254 444403245 447201040 474030128 479225590 482317368 500963658 510143370 513808880 522510482 527148149 546957840 565189768 575070708 592537660 602896710 622993267 646404720 652142040 663186381 667951544 670801560 680191160 706487210 711045192 718838385 766760944 770713320 783765723 803862280 816229392 834939430 847784652 884248508 888806490 918433373 958451180 964634736 1001927316 1020286740 1045020964 1054296298 1059730815 1105310635 1130379536 1150141416 1185075320 1205793420 1245986534 1252409145 1304284080 1306276205 1326372762 1335903088 1341603120 1360382320 1412974420 1422090384 1437676770 1541426640 1567531446 1581444447 1607724560 1669878860 1695569304 1768497016 1777612980 1836866746 1868979801 1916902360 2003854632 2040573480 2090041928 2108592596 2119461630 2210621270 2300282832 2370150640 2411586840 2491973068 2504818290 2612552410 2635740745 2652745524 2755300119 2825948840 2873807651 2875353540 3114966335 3135062892 3162888894 3315931905 3339757720 3391138608 3536994032 3555225960 3673733492 3737959602 3833804720 3918828615 4007709264 4081146960 4180083856 4217185192 4238923260 4421242540 4592166865 4823173680 4983946136 5009636580 5225104820 5271481490 5305491048 5510600238 5651897680 5747615302 5750707080 6229932670 6270125784 6325777788 6631863810 6679515440 6852925937 7110451920 7347466984 7475919204 7837657230 7907222235 8098912471 8434370384 8477846520 8621422953 8842485080 9184333730 9344899005 9967892272 10019273160 10450209640 10542962980 10610982096 11021200476 11495230604 11501414160 12459865340 12540251568 12651555576 13263727620 13705851874 13776500595 14369038255 14694933968 14951838408 15675314460 15814444470 16197824942 16955693040 17242845906 17684970160 18368667460 18689798010 20038546320 20558777811 20900419280 21085925960 22042400952 22990461208 24296737413 24919730680 25303111152 26527455240 27411703748 27553001190 28738076510 29903676816 31350628920 31628888940 32395649884 34264629685 34485691812 36737334920 37379596020 40494562355 41117555622 42171851920 43107114765 44084801904 45980922416 48593474826 49839461360 53054910480 54823407496 55106002380 57476153020 62701257840 63257777880 64791299768 68529259370 68971383624 73474669840 74759192040 80989124710 82235111244 86214229530 89088037181 97186949652 102793889055 109646814992 110212004760 114952306040 121483687065 126515555760 129582599536 137058518740 137942767248 149518384080 161978249420 164470222488 172428459060 178176074362 194373899304 205587778110 220424009520 229904612080 242967374130 267264111543 274117037480 323956498840 328940444976 344856918120 356352148724 388747798608 411175556220 445440185905 485934748260 534528223086 548234074960 647912997680 689713836240 712704297448 822351112440 890880371810 971869496520 1069056446172 1336320557715 1425408594896 1644702224880 1781760743620 1943738993040 2138112892344 2672641115430 3563521487240 4276225784688 5345282230860 7127042974480 10690564461720 21381128923440
• Sum of all divisors σ(n): 81661085356032
• Sum of proper divisors (its aliquot sum) s(n): 60279956432592
• 21381128923440 is an abundant number, because the sum of its proper divisors (60279956432592) is greater than itself. Its abundance is 38898827509152

Bases of 21381128923440

• Binary: 100110111001000101110100110000010100100110000₂
• Hexadecimal: 0x13722E982930
• Base-36: 7KUCS475C

Squares and roots of 21381128923440

• 21381128923440 squared (21381128923440²) is 457152674040762533381433600
• 21381128923440 cubed (21381128923440³) is 9774440261360886260034458450851843584000
• The square root of 21381128923440 is 4623973.2831667615
• The cube root of 21381128923440 is 27755.1477822501

Scales and comparisons

• 21,381,128,923,440 seconds is equal to 679,853 years, 39 weeks, 4 days, 22 hours, 44 minutes.
• To count from 1 to 21,381,128,923,440 would take you about one million, six hundred ninety-nine thousand, six hundred thirty-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 21381128923440 cubic inches would be around 2312.9 feet tall.

Recreational maths with 21381128923440

• 21381128923440 backwards is 04432982118312
• 21381128923440 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21381128923440's digits is 48
• More coming soon!