21392729280

Names of 21392729280

• Cardinal: 21392729280 can be written as Twenty-one billion, three hundred ninety-two million, seven hundred twenty-nine thousand, two hundred eighty.

Scientific notation

• Scientific notation: 2.139272928 × 10¹⁰

Factors of 21392729280

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 149

Divisors of 21392729280

• Number of divisors d(n): 1344
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 17 18 19 20 24 26 29 30 32 34 36 38 39 40 45 48 51 52 57 58 60 61 64 65 68 72 76 78 80 85 87 90 95 96 102 104 114 116 117 120 122 130 136 144 145 152 153 156 160 170 171 174 180 183 190 192 195 204 208 221 228 232 234 240 244 247 255 260 261 272 285 288 290 304 305 306 312 320 323 340 342 348 360 366 377 380 390 408 416 435 442 456 464 468 480 488 493 494 510 520 522 544 549 551 570 576 580 585 608 610 612 624 646 663 680 684 696 720 732 741 754 760 765 780 793 816 832 855 870 884 912 915 928 936 960 969 976 986 988 1020 1037 1040 1044 1088 1098 1102 1105 1131 1140 1159 1160 1170 1216 1220 1224 1235 1248 1292 1305 1326 1360 1368 1392 1440 1464 1479 1482 1508 1520 1530 1560 1586 1615 1632 1653 1710 1740 1768 1769 1824 1830 1856 1872 1885 1938 1952 1972 1976 1989 2040 2074 2080 2088 2196 2204 2210 2223 2262 2280 2318 2320 2340 2379 2440 2448 2465 2470 2496 2584 2610 2652 2720 2736 2745 2755 2784 2880 2907 2928 2958 2964 3016 3040 3060 3111 3120 3172 3230 3264 3306 3315 3393 3420 3477 3480 3536 3538 3648 3660 3705 3744 3770 3876 3904 3944 3952 3965 3978 4080 4148 4160 4176 4199 4392 4408 4420 4437 4446 4524 4560 4636 4640 4680 4758 4845 4880 4896 4930 4940 4959 5168 5185 5220 5304 5307 5440 5472 5490 5510 5568 5655 5795 5814 5856 5916 5928 6032 6080 6120 6222 6240 6344 6409 6460 6612 6630 6786 6840 6954 6960 7072 7076 7137 7163 7320 7395 7410 7488 7540 7752 7888 7904 7930 7956 8160 8265 8296 8352 8398 8784 8816 8840 8845 8874 8892 9048 9120 9272 9280 9333 9360 9367 9516 9690 9760 9792 9860 9880 9918 9945 10336 10370 10431 10440 10608 10614 10944 10980 11020 11115 11310 11590 11628 11712 11832 11856 11895 12064 12240 12444 12480 12597 12688 12818 12920 13224 13260 13481 13572 13680 13908 13920 14144 14152 14274 14326 14535 14640 14790 14820 15067 15080 15504 15555 15776 15808 15860 15912 15921 16320 16530 16592 16704 16796 16965 17385 17568 17632 17680 17690 17748 17784 18096 18240 18544 18666 18720 18734 19032 19227 19380 19520 19703 19720 19760 19836 19890 20672 20740 20862 20880 20995 21216 21228 21489 21960 22040 22185 22230 22620 22997 23180 23256 23664 23712 23790 24128 24480 24795 24888 25194 25376 25636 25840 26448 26520 26535 26962 27144 27360 27816 27840 28101 28304 28548 28652 29070 29280 29580 29640 30073 30134 30160 31008 31110 31552 31720 31824 31842 32045 33060 33184 33592 33611 33930 34770 35136 35264 35360 35380 35496 35568 35685 35815 36192 37088 37332 37440 37468 37791 38064 38454 38760 39406 39440 39520 39672 39780 40443 41480 41724 41760 41990 42432 42456 42978 43920 44080 44370 44460 45201 45240 45994 46360 46512 46665 46835 47328 47424 47580 48960 49590 49776 50388 50752 51272 51680 52155 52896 53040 53070 53924 54288 54720 55632 56202 56608 57096 57304 57681 58140 58560 59109 59160 59280 60146 60268 60320 62016 62220 62985 63440 63648 63684 64090 64467 66120 66368 67184 67222 67405 67860 68991 69540 70720 70760 70992 71136 71370 71630 72384 74176 74664 74936 75335 75582 76128 76908 77520 78812 78880 79040 79344 79560 79605 80886 82960 83448 83520 83980 84303 84912 85956 87840 88160 88740 88920 90219 90402 90480 91988 92720 93024 93330 93670 94656 95160 96135 98515 99180 99552 100776 100833 102544 103360 104310 105792 106080 106140 107445 107848 108576 111264 112404 113216 114192 114608 114985 115362 116280 118218 118320 118560 120292 120536 120640 121329 121771 124440 125970 126880 127296 127368 128180 128934 132240 134368 134444 134810 135603 135720 137982 139080 140505 141520 141984 142272 142740 143260 149328 149872 150365 150670 151164 152256 153816 155040 157624 157760 158688 159120 159210 161772 165920 166896 167960 168055 168606 169824 171912 175680 176320 177327 177480 177840 180438 180804 180960 183976 185440 186048 186660 187340 188955 190320 192270 197030 198360 199104 201552 201666 202215 205088 206973 208620 212160 212280 214890 215696 217152 222528 224808 226005 228384 229216 229970 230724 232560 236436 236640 237120 240584 241072 242658 243542 248880 251940 253760 254736 256139 256360 257868 264480 268736 268888 269620 270657 271206 271440 275964 278160 281010 283040 283968 285480 286520 288405 295545 298656 299744 300730 301340 302328 302499 307632 310080 315248 317376 318240 318420 322335 323544 331840 333792 335920 336110 337212 339648 343824 344955 354654 354960 355680 360876 361608 361920 365313 367952 370880 373320 374680 377910 380640 384540 390949 394060 396720 403104 403332 404430 410176 413946 417240 421515 424560 429780 431392 436943 449616 451095 452010 456768 458432 459940 461448 465120 472872 473280 481168 482144 485316 487084 497760 503880 504165 509472 512278 512720 515736 528960 537776 539240 541314 542412 542880 551928 556320 562020 566080 570960 571387 573040 576810 591090 597312 599488 601460 602680 604656 604998 606645 608855 615264 630496 636480 636840 644670 647088 667584 671840 672220 674424 678015 687648 689910 709308 709920 711360 721752 723216 730626 735904 746640 749360 755820 761280 768417 769080 781898 788120 793440 806208 806664 808860 827892 834480 843030 849120 859560 862784 873886 886635 899232 902190 904020 919880 922896 930240 945744 962336 964288 970632 974168 995520 1007760 1008330 1018944 1024556 1025440 1031472 1034865 1075552 1078480 1082628 1084824 1085760 1095939 1103856 1112640 1124040 1141920 1142774 1146080 1153620 1172847 1182180 1202920 1205360 1209312 1209996 1213290 1217710 1230528 1260992 1273680 1280695 1289340 1294176 1310829 1343680 1344440 1348848 1353285 1356030 1375296 1379820 1418616 1419840 1443504 1446432 1461252 1471808 1493280 1498720 1511640 1512495 1536834 1538160 1563796 1576240 1586880 1613328 1617720 1655784 1668960 1686060 1698240 1714161 1719120 1747772 1773270 1798464 1804380 1808040 1826565 1839760 1845792 1891488 1924672 1941264 1948336 1954745 2015520 2016660 2049112 2050880 2062944 2069730 2151104 2156960 2165256 2169648 2184715 2191878 2207712 2248080 2283840 2285548 2292160 2305251 2307240 2345694 2364360 2405840 2410720 2418624 2419992 2426580 2435420 2547360 2561390 2578680 2588352 2621658 2688880 2697696 2706570 2712060 2759640 2837232 2856935 2887008 2892864 2922504 2986560 2997440 3023280 3024990 3073668 3076320 3127592 3152480 3226656 3235440 3311568 3337920 3372120 3428322 3438240 3495544 3518541 3546540 3608760 3616080 3653130 3679520 3691584 3782976 3842085 3882528 3896672 3909490 3932487 4031040 4033320 4098224 4125888 4139460 4313920 4330512 4339296 4369430 4383756 4415424 4496160 4571096 4610502 4614480 4691388 4728720 4811680 4821440 4839984 4853160 4870840 5094720 5122780 5142483 5157360 5243316 5377760 5395392 5413140 5424120 5479695 5519280 5674464 5713870 5774016 5845008 5864235 6046560 6049980 6147336 6152640 6255184 6304960 6453312 6470880 6554145 6623136 6744240 6856644 6876480 6991088 7037082 7093080 7217520 7232160 7306260 7359040 7428031 7684170 7765056 7793344 7818980 7864974 8066640 8196448 8278920 8570805 8661024 8678592 8738860 8767512 8992320 9142192 9221004 9228960 9382776 9457440 9623360 9679968 9706320 9741680 10245560 10284966 10314720 10486632 10755520 10826280 10848240 10959390 11038560 11348928 11427740 11526255 11690016 11728470 12093120 12099960 12294672 12510368 12941760 13108290 13246272 13488480 13713288 13982176 14074164 14186160 14435040 14464320 14612520 14856062 15368340 15637960 15729948 16133280 16392896 16557840 17141610 17322048 17477720 17535024 17592705 18284384 18442008 18457920 18765552 18914880 19359936 19412640 19483360 19662435 20491120 20569932 20629440 20973264 21652560 21696480 21918780 22077120 22284093 22855480 23052510 23380032 23456940 24199920 24589344 25020736 25712415 26216580 26976960 27426576 27964352 28148328 28372320 28870080 29225040 29712124 30736680 31275920 31459896 32266560 33115680 34283220 34955440 35070048 35185410 36568768 36884016 37140155 37531104 38825280 38966720 39324870 40982240 41139864 41946528 43305120 43392960 43837560 44568186 45710960 46105020 46913880 48399840 49178688 51424830 52433160 54853152 56296656 56744640 58450080 59424248 61473360 62551840 62919792 66231360 66852279 68566440 69910880 70140096 70370820 73768032 74280310 75062208 78649740 81964480 82279728 83893056 86610240 87675120 89136372 91421920 92210040 93827760 96799680 102849660 104866320 109706304 111420465 112593312 116900160 118848496 122946720 125103680 125839584 133704558 137132880 139821760 140741640 147536064 148560620 157299480 164559456 175350240 178272744 182843840 184420080 187655520 205699320 209732640 222840930 225186624 237696992 245893440 251679168 267409116 274265760 281483280 297121240 314598960 329118912 334261395 350700480 356545488 368840160 375311040 411398640 419465280 445681860 475393984 534818232 548531520 562966560 594242480 629197920 668522790 713090976 737680320 822797280 891363720 1069636464 1125933120 1188484960 1258395840 1337045580 1426181952 1645594560 1782727440 2139272928 2376969920 2674091160 3565454880 4278545856 5348182320 7130909760 10696364640 21392729280
• Sum of all divisors σ(n): 92862806400
• Sum of proper divisors (its aliquot sum) s(n): 71470077120
• 21392729280 is an abundant number, because the sum of its proper divisors (71470077120) is greater than itself. Its abundance is 50077347840

Bases of 21392729280

• Binary: 10011111011000110110010010011000000₂
• Hexadecimal: 0x4FB1B24C0
• Base-36: 9TSOFK0

Squares and roots of 21392729280

• 21392729280 squared (21392729280²) is 457648866047369318400
• 21392729280 cubed (21392729280³) is 9790358296650355484709322752000
• The square root of 21392729280 is 146262.5354627765
• The cube root of 21392729280 is 2776.0166404061

Scales and comparisons

• 21,392,729,280 seconds is equal to 680 years, 11 weeks, 4 days, 48 minutes.
• To count from 1 to 21,392,729,280 would take you about one thousand, three hundred sixty 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 21392729280 cubic inches would be around 231.3 feet tall.

Recreational maths with 21392729280

• 21392729280 backwards is 08292729312
• 21392729280 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21392729280's digits is 45
• More coming soon!