21212340240

Names of 21212340240

• Cardinal: 21212340240 can be written as Twenty-one billion, two hundred twelve million, three hundred forty thousand, two hundred forty.

Scientific notation

• Scientific notation: 2.121234024 × 10¹⁰

Factors of 21212340240

• Number of distinct prime factors ω(n): 9
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 194

Divisors of 21212340240

• Number of divisors d(n): 1280
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 16 17 19 20 21 24 26 28 30 31 34 35 38 39 40 42 48 51 52 56 57 60 62 65 68 70 76 78 80 84 85 91 93 95 97 102 104 105 112 114 119 120 124 130 133 136 140 152 155 156 168 170 182 186 190 194 195 204 208 210 217 221 228 238 240 247 248 255 260 266 272 273 280 285 291 304 310 312 323 336 340 357 364 372 380 388 390 399 403 408 420 434 442 455 456 465 476 485 494 496 510 520 527 532 546 560 570 582 589 595 620 624 646 651 663 665 679 680 714 728 741 744 760 776 780 798 806 816 840 868 884 910 912 930 952 969 970 988 1020 1040 1054 1064 1085 1092 1105 1140 1164 1178 1190 1209 1235 1240 1261 1292 1302 1326 1330 1358 1360 1365 1428 1455 1456 1482 1488 1520 1547 1552 1560 1581 1596 1612 1615 1649 1680 1729 1736 1767 1768 1785 1820 1843 1860 1904 1938 1940 1976 1995 2015 2037 2040 2108 2128 2170 2184 2210 2261 2280 2328 2356 2380 2418 2470 2480 2522 2584 2604 2635 2652 2660 2716 2730 2821 2856 2910 2945 2964 3007 3094 3120 3162 3192 3224 3230 3255 3298 3315 3395 3458 3472 3534 3536 3570 3640 3686 3689 3705 3720 3783 3876 3880 3952 3990 4030 4074 4080 4123 4199 4216 4340 4368 4420 4522 4560 4641 4656 4712 4760 4836 4845 4940 4947 5044 5168 5187 5208 5270 5304 5320 5432 5460 5529 5642 5712 5820 5890 5928 6014 6045 6188 6305 6324 6384 6448 6460 6510 6596 6630 6783 6790 6851 6916 7068 7140 7280 7372 7378 7410 7440 7566 7657 7735 7752 7760 7905 7980 8060 8148 8245 8246 8398 8432 8463 8645 8680 8827 8835 8840 9021 9044 9215 9282 9424 9520 9672 9690 9880 9894 10013 10088 10185 10374 10416 10540 10608 10640 10864 10920 11058 11067 11284 11305 11543 11640 11780 11856 12028 12090 12369 12376 12597 12610 12648 12901 12920 13020 13192 13260 13566 13580 13702 13832 14105 14136 14280 14744 14756 14820 15035 15132 15314 15470 15504 15810 15960 16120 16296 16490 16492 16796 16926 17290 17360 17654 17670 17680 18042 18088 18430 18445 18564 18915 19344 19380 19760 19788 20026 20176 20370 20553 20615 20748 20995 21049 21080 21437 21840 22116 22134 22568 22610 22971 23086 23205 23280 23560 23959 24056 24180 24735 24738 24752 25194 25220 25296 25802 25840 25935 26040 26384 26481 26520 27132 27160 27404 27645 27664 28210 28272 28560 29393 29488 29512 29640 30039 30070 30264 30628 30940 31331 31620 31920 32240 32592 32980 32984 33592 33852 33915 34255 34580 34629 35308 35340 36084 36176 36860 36890 37128 37830 38285 38703 38760 39091 39576 40052 40740 41106 41230 41496 41990 42098 42160 42315 42874 44135 44232 44268 45105 45136 45220 45942 46172 46410 47120 47918 47957 48112 48360 49470 49476 50065 50388 50440 51119 51604 51870 52080 52962 53040 53599 54264 54320 54808 55290 55335 56420 57133 57715 58786 59024 59280 60078 60140 60528 61256 61845 61880 62662 62985 63147 63240 64311 64505 65960 65968 67184 67704 67830 68510 69160 69258 70091 70616 70680 71877 72168 73720 73780 74256 75660 76570 77406 77520 78182 79152 80104 81480 82212 82460 82992 83980 84196 84630 85748 88179 88270 88464 88536 90210 90440 91884 92344 92820 93993 95836 95914 96720 98940 98952 100130 100776 100880 102238 102765 103208 103740 105245 105924 107185 107198 108528 109616 110580 110670 112840 114266 114855 115430 117273 117572 119795 120156 120280 122512 123690 123760 125324 125970 126294 126480 128622 129010 130169 131920 132405 135408 135660 137020 138320 138516 140182 141232 141360 143754 143871 144336 146965 147440 147560 150059 150195 151320 153140 153357 154812 156364 156655 160208 160797 162960 164424 164920 167713 167960 168392 169260 171399 171496 173145 176358 176540 177072 180420 180880 183768 184688 185640 187986 191672 191828 193515 195455 197880 197904 200260 201552 204476 205530 206416 207480 210273 210490 211848 214370 214396 219317 221160 221340 225680 228532 229710 230860 234546 235144 239590 239785 240312 240560 247380 250648 251940 252588 255595 257244 258020 260338 264810 267995 271320 273637 274040 277032 280364 285665 287508 287742 293930 295120 300118 300390 302640 306280 306714 309624 312728 313310 315735 321555 321594 328848 329840 335426 335920 336784 338520 342798 342992 346290 350455 352716 353080 357833 359385 360840 367536 371280 375972 383344 383656 387030 390507 390910 395760 399931 400520 407303 408952 411060 414960 420546 420980 423696 428740 428792 438634 440895 442320 442680 450177 457064 459420 461720 469092 469965 470288 479180 479570 480624 494760 501296 503139 503880 505176 511190 514488 516040 520676 529620 535990 542640 547274 548080 554064 560728 571330 575016 575484 586365 587860 600236 600780 612560 613428 619248 625456 626620 631470 643110 643188 650845 657951 664547 670852 677040 685596 692580 700910 705432 706160 715666 718770 719355 721680 742729 750295 751944 766785 767312 774060 781014 781820 799862 801040 803985 814606 817904 820911 822120 838565 841092 841960 856995 857480 857584 877268 881790 885360 900354 911183 914128 918840 923440 938184 939930 958360 959140 971261 989520 1006278 1007760 1010352 1022380 1028976 1032080 1041352 1051365 1059240 1071980 1073499 1094548 1096585 1121456 1142660 1150032 1150968 1172730 1175720 1199793 1200472 1201560 1221909 1226856 1253240 1262940 1286220 1286376 1301690 1315902 1329094 1341704 1368185 1371192 1385160 1401820 1410864 1431332 1437540 1438710 1485458 1500590 1503888 1533570 1548120 1562028 1563640 1599724 1607970 1629212 1641822 1644240 1677130 1682184 1683920 1713990 1714960 1754536 1763580 1789165 1800708 1822366 1837680 1876368 1879860 1916720 1918280 1942522 1952535 1993641 1999655 2012556 2036515 2044760 2082704 2102730 2118480 2143960 2146998 2189096 2193170 2228187 2250885 2285320 2301936 2345460 2351440 2399586 2400944 2403120 2443818 2453712 2506480 2515695 2525880 2572440 2572752 2603380 2631804 2658188 2683408 2733549 2736370 2742384 2770320 2803640 2851121 2862664 2875080 2877420 2913783 2970916 3001180 3067140 3096240 3124056 3127280 3199448 3215940 3258424 3283644 3289755 3322735 3354260 3364368 3427980 3509072 3527160 3578330 3601416 3644732 3713645 3759720 3836560 3885044 3905070 3987282 3999310 4025112 4073030 4089520 4104555 4205460 4287920 4293996 4378192 4386340 4456374 4501770 4555915 4570640 4651829 4690920 4799172 4856305 4887636 5031390 5051760 5144880 5199103 5206760 5263608 5316376 5367495 5467098 5472740 5607280 5702242 5725328 5750160 5754840 5827566 5941832 5998965 6002360 6109545 6134280 6248112 6398896 6431880 6516848 6567288 6579510 6645470 6708520 6798827 6855960 7054320 7156660 7202832 7289464 7427290 7519440 7770088 7810140 7974564 7998620 8050224 8146060 8209110 8410920 8553363 8587992 8772680 8912748 9003540 9111830 9303658 9381840 9598344 9712610 9775272 9968205 10062780 10398206 10413520 10527216 10632752 10734990 10934196 10945480 11140935 11404484 11509680 11655132 11883664 11997930 12004720 12219090 12268560 12626393 12863760 13134576 13159020 13290940 13417040 13597654 13667745 13711920 13955487 14255605 14313320 14568915 14578928 14854580 15540176 15597309 15620280 15949128 15997240 16292120 16418220 16821840 17106726 17175984 17545360 17825496 18007080 18223660 18607316 19196688 19425220 19550544 19936410 20125560 20396481 20796412 21469980 21868392 21890960 22281870 22808968 23259145 23310264 23995860 24438180 25252786 25995515 26318040 26581880 27195308 27335490 27910974 28511210 28626640 29137830 29709160 31194618 31240560 31898256 31994480 32584240 32836440 33994135 34213452 35650992 36014160 36447320 37214632 37879179 38850440 39872820 40251120 40792962 41592824 42766815 42939960 43736784 44563740 45617936 46518290 46620528 47991720 48876360 50505572 51991030 52636080 53163760 54390616 54670980 55821948 57022420 58275660 59418320 62389236 63131965 65672880 67988270 68426904 69777435 72894640 74429264 75758358 77700880 77986545 79745640 81585924 83185648 85533630 85879920 88384751 89127480 93036580 95983440 97752720 101011144 101982405 103982060 108781232 109341960 111643896 114044840 116551320 124778472 126263930 135976540 136853808 139554870 151516716 155973090 159491280 163171848 171067260 176769502 178254960 186073160 189395895 202022288 203964810 207964120 218683920 223287792 228089680 233102640 249556944 252527860 265154253 271953080 279109740 303033432 311946180 326343696 342134520 353539004 372146320 378791790 407929620 415928240 441923755 505055720 530308506 543906160 558219480 606066864 623892360 684269040 707078008 757583580 815859240 883847510 1010111440 1060617012 1116438960 1247784720 1325771265 1414156016 1515167160 1631718480 1767695020 2121234024 2651542530 3030334320 3535390040 4242468048 5303085060 7070780080 10606170120 21212340240
• Sum of all divisors σ(n): 94073978880
• Sum of proper divisors (its aliquot sum) s(n): 72861638640
• 21212340240 is an abundant number, because the sum of its proper divisors (72861638640) is greater than itself. Its abundance is 51649298400

Bases of 21212340240

• Binary: 10011110000010110101010000000010000₂
• Hexadecimal: 0x4F05AA010
• Base-36: 9QTA2HC

Squares and roots of 21212340240

• 21212340240 squared (21212340240²) is 449963378457523257600
• 21212340240 cubed (21212340240³) is 9544776279380869727924365824000
• The square root of 21212340240 is 145644.5681788373
• The cube root of 21212340240 is 2768.1919082699

Scales and comparisons

• 21,212,340,240 seconds is equal to 674 years, 25 weeks, 2 days, 4 hours, 44 minutes.
• To count from 1 to 21,212,340,240 would take you about one thousand, three hundred forty-eight 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 21212340240 cubic inches would be around 230.7 feet tall.

Recreational maths with 21212340240

• 21212340240 backwards is 04204321212
• 21212340240 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21212340240's digits is 21
• More coming soon!