21209099760452720

Names of 21209099760452720

• Cardinal: 21209099760452720 can be written as Twenty-one quadrillion, two hundred nine trillion, ninety-nine billion, seven hundred sixty million, four hundred fifty-two thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.120909976045272 × 10¹⁶

Factors of 21209099760452720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 162

Divisors of 21209099760452720

• Number of divisors d(n): 600
• Complete list of divisors:
  1 2 4 5 8 10 16 19 20 38 40 47 76 80 89 94 95 152 178 188 190 235 304 356 361 376 380 445 470 712 722 752 760 890 893 940 1424 1444 1520 1691 1780 1786 1805 1880 2209 2888 3382 3560 3572 3610 3760 4183 4418 4465 5776 6764 6859 7120 7144 7220 7921 8366 8455 8836 8930 11045 13528 13718 14288 14440 15842 16732 16910 16967 17672 17860 20915 22090 27056 27436 28880 31684 32129 33464 33820 33934 34295 35344 35720 39605 41830 41971 44180 54872 63368 64258 66928 67640 67868 68590 71440 79210 79477 83660 83942 84835 88360 103823 109744 126736 128516 135280 135736 137180 150499 158420 158954 160645 167320 167884 169670 176720 196601 207646 209855 257032 271472 274360 300998 316840 317908 321290 322373 334640 335768 339340 372287 393202 397385 415292 419710 514064 519115 548720 601996 610451 633680 635816 642580 644746 671536 678680 744574 752495 786404 794770 797449 830584 839420 983005 1038230 1203992 1220902 1271632 1285160 1289492 1357360 1489148 1504990 1510063 1572808 1589540 1594898 1611865 1661168 1678840 1861435 1966010 1972637 2076460 2407984 2441804 2570320 2578984 2859481 2978296 3009980 3020126 3052255 3145616 3179080 3189796 3223730 3357680 3722870 3735419 3932020 3945274 3987245 4152920 4879681 4883608 5157968 5718962 5956592 6019960 6040252 6104510 6358160 6379592 6447460 7073453 7445740 7470838 7550315 7864040 7890548 7974490 8305840 9240247 9759362 9767216 9863185 11437924 12039920 12080504 12209020 12759184 12894920 14146906 14297405 14891480 14941676 15100630 15151531 15728080 15781096 15948980 17497489 18480494 18677095 19518724 19726370 22875848 24161008 24398405 24418040 25789840 28293812 28594810 28691197 29782960 29883352 30201260 30303062 31562192 31897960 34994978 35367265 36960988 37354190 37480103 39037448 39452740 45751696 46201235 48796810 48836080 54330139 56587624 57189620 57382394 59766704 60402520 60606124 63795920 69989956 70734530 70972961 73921976 74708380 74960206 75757655 78074896 78905480 87487445 92402470 92713939 97593620 108660278 113175248 114379240 114764788 120805040 121212248 134395607 139979912 141469060 141945922 143455985 147843952 149416760 149920412 151515310 157810960 174974890 175564693 184804940 185427878 187400515 195187240 217320556 228758480 229529576 242424496 268791214 271650695 279959824 282938120 283891844 286911970 298833520 299840824 303030620 332452291 349949780 351129386 354864805 369609880 370855756 374801030 390374480 434291609 434641112 459059152 463569695 537582428 543301390 565876240 567783688 573823940 599681648 606061240 664904582 671978035 699899560 702258772 709729610 712121957 739219760 741711512 749602060 822381983 868583218 869282224 877823465 927139390 1075164856 1086602780 1135567376 1147647880 1212122480 1329809164 1343956070 1348486259 1399799120 1404517544 1419459220 1424243914 1483423024 1499204120 1644763966 1662261455 1737166436 1755646930 1761564841 1854278780 2150329712 2171458045 2173205560 2295295760 2553516533 2659618328 2687912140 2696972518 2809035088 2838918440 2848487828 2998408240 3289527932 3324522910 3335729167 3474332872 3511293860 3523129682 3560609785 3708557560 4111909915 4342916090 4346411120 5107033066 5319236656 5375824280 5393945036 5677836880 5696975656 6316593529 6579055864 6649045820 6671458334 6742431295 6948665744 7022587720 7046259364 7121219570 7417115120 8223819830 8251540571 8685832180 8807824205 10214066132 10751648560 10787890072 11393951312 12633187058 12767582665 13158111728 13298091640 13342916668 13484862590 14045175440 14092518728 14242439140 15625257677 16447639660 16503081142 16678645835 17371664360 17615648410 20428132264 21575780144 25266374116 25535165330 26596183280 26685833336 26969725180 28185037456 28484878280 31250515354 31582967645 32895279320 33006162284 33357291670 33469731979 34743328720 35231296820 38651953201 40856264528 41257702855 50532748232 51070330660 53371666672 53939450360 56969756560 62501030708 63165935290 63378854173 65790558640 66012324568 66714583340 66939463958 70462593640 77303906402 78126288385 82515405710 101065496464 102140661320 107878900720 120015277051 125002061416 126331870580 126757708346 132024649136 133429166680 133878927916 140925187280 154607812804 156252576770 156779270849 165030811420 167348659895 193259766005 204281322640 240030554102 250004122832 252663741160 253515416692 266858333360 267757855832 296879895863 309215625608 312505153540 313558541698 316894270865 330061622840 334697319790 386519532010 480061108204 505327482320 507030833384 535515711664 593759791726 600076385255 618431251216 625010307080 627117083396 633788541730 660123245680 669394639580 734387110819 773039064020 783896354245 960122216408 1014061666768 1187519583452 1200152770510 1250020614160 1254234166792 1267577083460 1338789279160 1468774221638 1484399479315 1546078128040 1567792708490 1920244432816 2375039166904 2400305541020 2508468333584 2535154166920 2677578558320 2937548443276 2968798958630 2978806146131 3092156256080 3135585416980 3671935554095 4750078333808 4800611082040 5070308333840 5640718021397 5875096886552 5937597917260 5957612292262 6271170833960 7343871108190 9601222164080 11281436042794 11750193773104 11875195834520 11915224584524 12542341667920 13953355105561 14687742216380 14894030730655 22562872085588 23750391669040 23830449169048 27906710211122 28203590106985 29375484432760 29788061461310 45125744171176 47660898338096 55813420422244 56407180213970 58750968865520 59576122922620 69766775527805 90251488342352 111626840844488 112814360427940 119152245845240 139533551055610 223253681688976 225628720855880 238304491690480 265113747005659 279067102111220 451257441711760 530227494011318 558134204222440 1060454988022636 1116268408444880 1325568735028295 2120909976045272 2651137470056590 4241819952090544 5302274940113180 10604549880226360 21209099760452720
• Sum of all divisors σ(n): 53786055821443440
• Sum of proper divisors (its aliquot sum) s(n): 32576956060990720
• 21209099760452720 is an abundant number, because the sum of its proper divisors (32576956060990720) is greater than itself. Its abundance is 11367856300538000

Bases of 21209099760452720

• Binary: 1001011010110011001000001011001001110100100010001110000₂
• Hexadecimal: 0x4B5990593A4470
• Base-36: 5STZXX6N8FK

Squares and roots of 21209099760452720

• 21209099760452720 squared (21209099760452720²) is 449825912648835624886899355398400
• 21209099760452720 cubed (21209099760452720³) is 9540402656205845803242568009823157220559963648000
• The square root of 21209099760452720 is 145633443.1387678205
• The cube root of 21209099760452720 is 276805.0941172915

Scales and comparisons

• 21,209,099,760,452,720 seconds is equal to 674,383,768 years, 17 weeks, 21 hours, 45 minutes, 20 seconds.
• To count from 1 to 21,209,099,760,452,720 would take you about two billion, twenty-three million, one hundred fifty-one thousand, three hundred 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 21209099760452720 cubic inches would be around 23067.1 feet tall.

Recreational maths with 21209099760452720

• 21209099760452720 backwards is 02725406799090212
• The number of decimal digits it has is: 17
• The sum of 21209099760452720's digits is 65
• More coming soon!