21037040640

Names of 21037040640

• Cardinal: 21037040640 can be written as Twenty-one billion, thirty-seven million, forty thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.103704064 × 10¹⁰

Factors of 21037040640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 28

Divisors of 21037040640

• Number of divisors d(n): 1056
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 18 20 21 22 24 28 30 32 33 35 36 40 42 44 45 48 49 55 56 60 63 64 66 70 72 77 80 84 88 90 96 98 99 105 110 112 120 121 126 128 132 140 144 147 154 160 165 168 176 180 192 196 198 210 220 224 231 240 242 245 252 256 264 280 288 294 308 315 320 330 336 343 352 360 363 384 385 392 396 420 440 441 448 462 480 484 490 495 504 512 528 539 560 576 588 605 616 630 640 660 672 686 693 704 720 726 735 768 770 784 792 840 847 880 882 896 924 960 968 980 990 1008 1024 1029 1056 1078 1089 1120 1152 1155 1176 1210 1232 1260 1280 1320 1331 1344 1372 1386 1408 1440 1452 1470 1536 1540 1568 1584 1617 1680 1694 1715 1760 1764 1792 1815 1848 1920 1936 1960 1980 2016 2058 2112 2156 2178 2205 2240 2304 2310 2352 2420 2464 2520 2541 2560 2640 2662 2688 2695 2744 2772 2816 2880 2904 2940 3072 3080 3087 3136 3168 3234 3360 3388 3430 3465 3520 3528 3584 3630 3696 3773 3840 3872 3920 3960 3993 4032 4116 4224 4235 4312 4356 4410 4480 4608 4620 4704 4840 4851 4928 5040 5082 5120 5145 5280 5324 5376 5390 5445 5488 5544 5632 5760 5808 5880 5929 6160 6174 6272 6336 6468 6655 6720 6776 6860 6930 7040 7056 7168 7260 7392 7546 7623 7680 7744 7840 7920 7986 8064 8085 8232 8448 8470 8624 8712 8820 8960 9216 9240 9317 9408 9680 9702 9856 10080 10164 10290 10560 10648 10752 10780 10890 10976 11088 11264 11319 11520 11616 11760 11858 11979 12320 12348 12544 12672 12705 12936 13310 13440 13552 13720 13860 14080 14112 14520 14784 15092 15246 15360 15435 15488 15680 15840 15972 16128 16170 16464 16896 16940 17248 17424 17640 17787 17920 18480 18634 18816 18865 19360 19404 19712 19965 20160 20328 20580 21120 21296 21504 21560 21780 21952 22176 22638 23040 23232 23520 23716 23958 24255 24640 24696 25088 25344 25410 25872 26620 26880 27104 27440 27720 27951 28160 28224 29040 29568 29645 30184 30492 30870 30976 31360 31680 31944 32256 32340 32928 33792 33880 33957 34496 34848 35280 35574 35840 36960 37268 37632 37730 38115 38720 38808 39424 39930 40320 40656 41160 41503 42240 42592 43120 43560 43904 44352 45276 46080 46464 46585 47040 47432 47916 48510 49280 49392 50176 50688 50820 51744 53240 53361 53760 54208 54880 55440 55902 56320 56448 56595 58080 59136 59290 59895 60368 60984 61740 61952 62720 63360 63888 64512 64680 65219 65856 67760 67914 68992 69696 70560 71148 73920 74536 75264 75460 76230 77440 77616 78848 79860 80640 81312 82320 83006 83853 84480 85184 86240 87120 87808 88704 88935 90552 92928 93170 94080 94864 95832 97020 98560 98784 101376 101640 103488 106480 106722 107520 108416 109760 110880 111804 112896 113190 116160 118272 118580 119790 120736 121968 123480 123904 124509 125440 126720 127776 129360 130438 131712 135520 135828 137984 139392 139755 141120 142296 147840 149072 150528 150920 152460 154880 155232 159720 161280 162624 164640 166012 167706 168960 169785 170368 172480 174240 175616 177408 177870 181104 185856 186340 188160 189728 191664 194040 195657 197120 197568 203280 206976 207515 212960 213444 216832 219520 221760 223608 225792 226380 232320 236544 237160 239580 241472 243936 246960 249018 250880 253440 255552 258720 260876 263424 266805 271040 271656 275968 278784 279510 282240 284592 295680 298144 301840 304920 309760 310464 319440 322560 325248 326095 329280 332024 335412 339570 340736 344960 348480 351232 354816 355740 362208 371712 372680 373527 376320 379456 383328 388080 391314 394240 395136 406560 413952 415030 419265 425920 426888 433664 439040 443520 447216 451584 452760 456533 464640 474320 479160 482944 487872 493920 498036 506880 511104 517440 521752 526848 533610 542080 543312 551936 557568 559020 564480 569184 586971 591360 596288 603680 609840 619520 620928 622545 638880 650496 652190 658560 664048 670824 679140 681472 689920 696960 709632 711480 724416 745360 747054 752640 758912 766656 776160 782628 790272 813120 827904 830060 838530 851840 853776 867328 878080 887040 894432 905520 913066 929280 948640 958320 965888 975744 978285 987840 996072 1022208 1034880 1043504 1053696 1067220 1084160 1086624 1115136 1118040 1128960 1138368 1173942 1182720 1192576 1207360 1219680 1241856 1245090 1277760 1300992 1304380 1317120 1328096 1341648 1358280 1362944 1369599 1379840 1393920 1422960 1448832 1490720 1494108 1517824 1533312 1552320 1565256 1580544 1626240 1655808 1660120 1677060 1703680 1707552 1756160 1774080 1788864 1811040 1826132 1858560 1867635 1897280 1916640 1931776 1951488 1956570 1975680 1992144 2044416 2069760 2087008 2134440 2168320 2173248 2236080 2257920 2276736 2282665 2347884 2385152 2414720 2439360 2483712 2490180 2555520 2601984 2608760 2634240 2656192 2683296 2716560 2739198 2759680 2787840 2845920 2897664 2934855 2981440 2988216 3035648 3066624 3104640 3130512 3161088 3252480 3320240 3354120 3407360 3415104 3548160 3577728 3622080 3652264 3735270 3794560 3833280 3863552 3902976 3913140 3951360 3984288 4088832 4108797 4139520 4174016 4268880 4336640 4346496 4472160 4553472 4565330 4695768 4770304 4829440 4878720 4967424 4980360 5111040 5217520 5268480 5312384 5366592 5433120 5478396 5575680 5691840 5795328 5869710 5962880 5976432 6071296 6133248 6209280 6261024 6504960 6640480 6708240 6814720 6830208 6847995 7155456 7244160 7304528 7470540 7589120 7666560 7805952 7826280 7902720 7968576 8217594 8279040 8348032 8537760 8692992 8944320 9106944 9130660 9391536 9540608 9658880 9757440 9960720 10222080 10435040 10624768 10733184 10866240 10956792 11383680 11590656 11739420 11925760 11952864 12266496 12418560 12522048 13009920 13280960 13416480 13660416 13695990 14310912 14488320 14609056 14941080 15178240 15333120 15652560 15805440 15937152 16435188 16696064 17075520 17385984 17888640 18213888 18261320 18783072 19317760 19514880 19921440 20444160 20543985 20870080 21249536 21466368 21732480 21913584 22767360 23478840 23851520 23905728 24837120 25044096 26561920 26832960 27320832 27391980 28621824 28976640 29218112 29882160 30356480 30666240 31305120 31874304 32870376 33392128 34151040 34771968 35777280 36522640 37566144 39029760 39842880 41087970 41740160 42499072 42932736 43464960 43827168 45534720 46957680 47703040 47811456 50088192 53123840 53665920 54641664 54783960 57953280 58436224 59764320 61332480 62610240 63748608 65740752 66784256 68302080 71554560 73045280 75132288 79685760 82175940 83480320 85865472 86929920 87654336 91069440 93915360 95622912 100176384 106247680 107331840 109567920 116872448 119528640 125220480 127497216 131481504 136604160 143109120 146090560 150264576 159371520 164351880 166960640 173859840 175308672 187830720 191245824 200352768 212495360 214663680 219135840 233744896 239057280 250440960 262963008 273208320 292181120 300529152 318743040 328703760 333921280 350617344 375661440 382491648 429327360 438271680 467489792 478114560 500881920 525926016 584362240 601058304 637486080 657407520 701234688 751322880 876543360 956229120 1001763840 1051852032 1168724480 1314815040 1402469376 1502645760 1753086720 1912458240 2103704064 2337448960 2629630080 3005291520 3506173440 4207408128 5259260160 7012346880 10518520320 21037040640
• Sum of all divisors σ(n): 93500409600
• Sum of proper divisors (its aliquot sum) s(n): 72463368960
• 21037040640 is an abundant number, because the sum of its proper divisors (72463368960) is greater than itself. Its abundance is 51426328320

Bases of 21037040640

• Binary: 10011100101111001111100010000000000₂
• Hexadecimal: 0x4E5E7C400
• Base-36: 9NWWSG0

Squares and roots of 21037040640

• 21037040640 squared (21037040640²) is 442557078889011609600
• 21037040640 cubed (21037040640³) is 9310091254107823280587014144000
• The square root of 21037040640 is 145041.5135056167
• The cube root of 21037040640 is 2760.5453238793

Scales and comparisons

• 21,037,040,640 seconds is equal to 668 years, 47 weeks, 3 days, 6 hours, 24 minutes.
• To count from 1 to 21,037,040,640 would take you about one thousand, three hundred thirty-seven 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 21037040640 cubic inches would be around 230 feet tall.

Recreational maths with 21037040640

• 21037040640 backwards is 04604073012
• The number of decimal digits it has is: 11
• The sum of 21037040640's digits is 27
• More coming soon!