21234702720

Names of 21234702720

• Cardinal: 21234702720 can be written as Twenty-one billion, two hundred thirty-four million, seven hundred two thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.123470272 × 10¹⁰

Factors of 21234702720

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 116

Divisors of 21234702720

• Number of divisors d(n): 1152
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 11 12 14 15 16 17 20 21 22 24 28 30 32 33 34 35 40 42 44 48 49 51 55 56 60 64 66 68 70 71 77 80 84 85 88 96 98 102 105 110 112 119 120 128 132 136 140 142 147 154 160 165 168 170 176 187 192 196 204 210 213 220 224 231 238 240 245 255 264 272 280 284 289 294 308 320 330 336 340 352 355 357 374 384 385 392 408 420 426 440 448 462 476 480 490 497 510 528 539 544 560 561 568 578 588 595 616 640 660 672 680 704 710 714 735 748 770 781 784 816 833 840 852 867 880 896 924 935 952 960 980 994 1020 1056 1065 1078 1088 1120 1122 1136 1155 1156 1176 1190 1207 1232 1309 1320 1344 1360 1408 1420 1428 1445 1470 1491 1496 1540 1562 1568 1617 1632 1666 1680 1704 1734 1760 1785 1848 1870 1904 1920 1960 1988 2023 2040 2112 2130 2156 2176 2240 2244 2272 2310 2312 2343 2352 2380 2414 2464 2485 2499 2618 2640 2688 2695 2720 2805 2840 2856 2890 2940 2982 2992 3080 3124 3136 3179 3234 3264 3332 3360 3408 3468 3479 3520 3570 3621 3696 3740 3808 3905 3920 3927 3976 4046 4080 4165 4224 4260 4312 4335 4480 4488 4544 4620 4624 4686 4704 4760 4828 4928 4970 4998 5236 5280 5390 5440 5467 5610 5680 5712 5780 5880 5964 5984 6035 6069 6160 6248 6272 6358 6468 6528 6545 6664 6720 6816 6936 6958 7040 7140 7242 7392 7455 7480 7616 7810 7840 7854 7952 8085 8092 8160 8330 8449 8520 8624 8670 8976 9088 9163 9240 9248 9372 9408 9520 9537 9656 9856 9940 9996 10115 10437 10472 10560 10780 10880 10934 11220 11360 11424 11560 11715 11760 11928 11968 12070 12138 12320 12495 12496 12716 12936 13090 13277 13328 13440 13632 13872 13916 14161 14280 14484 14784 14910 14960 15232 15620 15680 15708 15895 15904 16170 16184 16320 16401 16660 16898 17040 17248 17340 17395 17952 18105 18326 18480 18496 18744 18816 19040 19074 19312 19635 19880 19992 20230 20519 20874 20944 21120 21560 21868 22253 22440 22720 22848 23120 23430 23520 23856 23936 24140 24276 24640 24990 24992 25347 25432 25872 26180 26554 26656 27264 27335 27489 27744 27832 28322 28560 28968 29568 29820 29920 30345 31240 31360 31416 31790 31808 32340 32368 32640 32802 33320 33796 34080 34496 34680 34790 35904 36210 36652 36960 36992 37488 38080 38148 38269 38624 39270 39760 39831 39984 40460 41038 41748 41888 42245 42483 43120 43736 44506 44880 45440 45696 45815 46240 46860 47040 47685 47712 48280 48552 49280 49980 49984 50694 50864 51744 52185 52360 53108 53312 54670 54978 55488 55664 56644 57120 57936 59143 59640 59840 60690 61557 62480 62832 63580 63616 64680 64736 65604 66385 66640 66759 67592 68160 68992 69360 69580 70805 71808 72420 73304 73920 74976 76160 76296 76538 77248 78540 79520 79662 79968 80920 82005 82076 83496 83776 84490 84966 86240 87472 89012 89760 91630 92480 92939 93720 94080 95370 95424 96560 97104 99960 99968 101388 101728 102595 103488 104370 104720 106216 106624 109340 109956 110976 111265 111328 113288 114240 114807 115872 118286 119280 119680 121380 123114 124960 125664 126735 127160 129360 129472 131208 132770 133280 133518 135184 136320 137445 138720 139160 141610 143633 144840 146608 147840 149952 152592 153076 154496 155771 157080 159040 159324 159936 161840 164010 164152 166992 167552 168980 169932 172480 174944 177429 178024 179520 183260 184960 185878 187440 190740 190848 191345 193120 194208 199155 199920 202776 203456 205190 206976 208740 209440 212415 212432 218680 219912 222530 222656 225709 226576 228480 229614 231744 236572 238560 242760 246228 249920 251328 253470 254320 258720 258944 262416 265540 266560 267036 270368 274890 277440 278320 278817 283220 287266 289680 293216 295715 299904 305184 306152 307785 311542 314160 318080 318648 319872 323680 328020 328304 333795 333984 337960 339864 344960 349888 354858 356048 359040 366520 371756 374880 381480 382690 386240 388416 398310 399840 405552 406912 410380 417480 418880 424830 424864 430899 437360 439824 445060 445312 451418 453152 459228 463488 464695 467313 473144 477120 485520 492456 499840 502656 506940 508640 517440 524832 531080 533120 534072 540736 549780 554880 556640 557634 566440 574035 574532 579360 586432 591430 610368 612304 615570 623084 628320 637296 647360 650573 656040 656608 667590 667968 675920 677127 679728 699776 709716 712096 718165 733040 743512 749760 762960 765380 772480 776832 778855 796620 799680 811104 820760 834960 837760 849660 849728 861798 874720 879648 887145 890120 902836 906304 918456 929390 934626 946288 954240 971040 984912 1005431 1013880 1017280 1034880 1049664 1062160 1068144 1081472 1099560 1113280 1115268 1128545 1132880 1148070 1149064 1158720 1172864 1182860 1220736 1224608 1231140 1246168 1256640 1274592 1294720 1301146 1312080 1313216 1335180 1335936 1351840 1354254 1359456 1394085 1419432 1424192 1436330 1466080 1487024 1499520 1525920 1530760 1557710 1579963 1593240 1599360 1622208 1641520 1669920 1699320 1699456 1723596 1749440 1759296 1774290 1780240 1805672 1812608 1836912 1858780 1869252 1892576 1942080 1951719 1969824 2010862 2027760 2034560 2099328 2124320 2136288 2154495 2199120 2226560 2230536 2257090 2265760 2296140 2298128 2317440 2336565 2365720 2449216 2462280 2492336 2513280 2549184 2602292 2624160 2626432 2670360 2703680 2708508 2718912 2788170 2838864 2848384 2872660 2932160 2974048 3016293 3051840 3061520 3115420 3159926 3186480 3244416 3252865 3283040 3339840 3385635 3398640 3447192 3498880 3518592 3548580 3560480 3611344 3673824 3717560 3738504 3785152 3884160 3903438 3939648 4021724 4055520 4248640 4272576 4308990 4398240 4461072 4514180 4531520 4592280 4596256 4673130 4731440 4739889 4898432 4924560 4984672 5027155 5098368 5204584 5248320 5340720 5407360 5417016 5437824 5576340 5677728 5745320 5864320 5948096 6032586 6103680 6123040 6230840 6319852 6372960 6505730 6566080 6679680 6771270 6797280 6894384 7097160 7120960 7222688 7347648 7435120 7477008 7570304 7806876 7879296 7899815 8043448 8111040 8497280 8545152 8617980 8796480 8922144 9028360 9063040 9184560 9192512 9346260 9462880 9479778 9758595 9849120 9969344 10054310 10409168 10496640 10681440 10834032 11059741 11152680 11355456 11490640 11896192 12065172 12246080 12461680 12639704 12745920 13011460 13132160 13542540 13594560 13788768 14194320 14241920 14445376 14695296 14870240 14954016 15081465 15613752 15799630 16086896 16222080 17235960 17592960 17844288 18056720 18369120 18385024 18692520 18925760 18959556 19517190 19698240 19938688 20108620 20818336 21362880 21668064 22119482 22305360 22710912 22981280 23699445 24130344 24492160 24923360 25279408 25491840 26022920 27085080 27189120 27577536 28388640 28890752 29740480 29908032 30162930 31227504 31599260 32173792 33179223 34471920 35688576 36113440 36738240 37385040 37851520 37919112 39034380 39396480 40217240 41636672 42725760 43336128 44238964 44610720 45962560 47398890 48260688 49846720 50558816 52045840 54170160 55155072 55298705 56777280 59480960 59816064 60325860 62455008 63198520 64347584 66358446 68943840 72226880 73476480 74770080 75838224 78068760 80434480 83273344 86672256 88477928 89221440 91925120 94797780 96521376 99693440 101117632 104091680 108340320 110597410 113554560 120651720 124910016 126397040 128695168 132716892 137887680 144453760 149540160 151676448 156137520 160868960 165896115 176955856 178442880 189595560 193042752 202235264 208183360 216680640 221194820 241303440 249820032 252794080 265433784 275775360 299080320 303352896 312275040 321737920 331792230 353911712 379191120 386085504 416366720 433361280 442389640 482606880 505588160 530867568 606705792 624550080 643475840 663584460 707823424 758382240 884779280 965213760 1011176320 1061735136 1249100160 1327168920 1415646848 1516764480 1769558560 1930427520 2123470272 2654337840 3033528960 3539117120 4246940544 5308675680 7078234240 10617351360 21234702720
• Sum of all divisors σ(n): 92529112320
• Sum of proper divisors (its aliquot sum) s(n): 71294409600
• 21234702720 is an abundant number, because the sum of its proper divisors (71294409600) is greater than itself. Its abundance is 50059706880

Bases of 21234702720

• Binary: 10011110001101011111101100110000000₂
• Hexadecimal: 0x4F1AFD980
• Base-36: 9R6LDHC

Squares and roots of 21234702720

• 21234702720 squared (21234702720²) is 450912599606775398400
• 21234702720 cubed (21234702720³) is 9574995005352264482833563648000
• The square root of 21234702720 is 145721.3186874179
• The cube root of 21234702720 is 2769.1643280163

Scales and comparisons

• 21,234,702,720 seconds is equal to 675 years, 10 weeks, 2 days, 32 minutes.
• To count from 1 to 21,234,702,720 would take you about one thousand, three hundred fifty 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 21234702720 cubic inches would be around 230.8 feet tall.

Recreational maths with 21234702720

• 21234702720 backwards is 02720743212
• 21234702720 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21234702720's digits is 30
• More coming soon!