21815330240

Names of 21815330240

• Cardinal: 21815330240 can be written as Twenty-one billion, eight hundred fifteen million, three hundred thirty thousand, two hundred forty.

Scientific notation

• Scientific notation: 2.181533024 × 10¹⁰

Factors of 21815330240

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 298

Divisors of 21815330240

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 4 5 8 10 11 16 17 20 22 32 34 37 40 44 55 59 64 68 74 80 85 88 110 118 136 148 160 167 170 176 185 187 220 236 272 295 296 320 334 340 352 370 374 407 440 472 544 590 592 629 649 668 680 704 740 748 814 835 880 935 944 1003 1088 1180 1184 1258 1298 1336 1360 1480 1496 1628 1670 1760 1837 1870 1888 2006 2035 2183 2360 2368 2516 2596 2672 2720 2839 2960 2992 3145 3245 3256 3340 3520 3674 3740 3776 4012 4070 4366 4720 5015 5032 5192 5344 5440 5678 5920 5984 6179 6290 6490 6512 6680 6919 7348 7480 8024 8140 8732 9185 9440 9853 10030 10064 10384 10688 10915 11033 11356 11840 11968 12358 12580 12980 13024 13360 13838 14195 14696 14960 16048 16280 17464 18370 18880 19706 20060 20128 20768 21830 22066 22712 24013 24716 25160 25960 26048 26720 27676 28390 29392 29920 30895 31229 32096 32560 34595 34928 36740 37111 39412 40120 40256 41536 43660 44132 45424 48026 49265 49432 50320 51920 53440 55165 55352 56780 58784 59840 61790 62458 64192 65120 67969 69190 69856 73480 74222 78824 80240 87320 88264 90848 96052 98530 98864 100640 103840 105043 108383 110330 110704 113560 117568 120065 123580 124916 130240 135938 138380 139712 146960 148444 156145 157648 160480 167501 174640 176528 181696 185555 192104 197060 197728 201280 207680 210086 216766 220660 221408 227120 240130 247160 249832 271876 276760 293920 296888 312290 315296 320960 335002 339845 349280 353056 364561 371110 384208 394120 395456 408221 420172 433532 441320 442816 454240 480260 494320 499664 525215 541915 543752 553520 587840 593776 624580 630592 670004 679690 698560 706112 729122 742220 768416 788240 816442 837505 840344 867064 882640 908480 960520 988640 999328 1050430 1083830 1087504 1107040 1155473 1187552 1249160 1340008 1359380 1458244 1484440 1536832 1576480 1632884 1675010 1680688 1734128 1765280 1822805 1842511 1921040 1977280 1998656 2041105 2100860 2167660 2175008 2214080 2310946 2375104 2498320 2680016 2718760 2916488 2968880 3152960 3265768 3350020 3361376 3468256 3530560 3645610 3685022 3842080 4010171 4082210 4201720 4335320 4350016 4621892 4996640 5360032 5437520 5777365 5832976 5937760 6197537 6531536 6700040 6722752 6936512 7291220 7370044 7684160 8020342 8164420 8403440 8670640 9212555 9243784 9993280 10720064 10875040 11554730 11665952 11875520 12395074 13063072 13400080 14582440 14740088 16040684 16328840 16806880 17341280 18425110 18487568 20050855 21750080 23109460 23331904 24790148 26126144 26800160 29164880 29480176 30987685 32081368 32657680 33613760 34682560 36850220 36975136 40101710 46218920 49580296 53600320 58329760 58960352 61975370 64162736 65315360 68172907 73700440 73950272 80203420 92437840 99160592 116659520 117920704 123950740 128325472 130630720 136345814 147400880 160406840 184875680 198321184 247901480 256650944 272691628 294801760 320813680 340864535 369751360 396642368 495802960 545383256 589603520 641627360 681729070 991605920 1090766512 1283254720 1363458140 1983211840 2181533024 2726916280 4363066048 5453832560 10907665120 21815330240
• Sum of all divisors σ(n): 63045319680
• Sum of proper divisors (its aliquot sum) s(n): 41229989440
• 21815330240 is an abundant number, because the sum of its proper divisors (41229989440) is greater than itself. Its abundance is 19414659200

Bases of 21815330240

• Binary: 10100010100010010111000010111000000₂
• Hexadecimal: 0x5144B85C0
• Base-36: A0SA8JK

Squares and roots of 21815330240

• 21815330240 squared (21815330240²) is 475908633480258457600
• 21815330240 cubed (21815330240³) is 10382104003438958773097037824000
• The square root of 21815330240 is 147700.1362220089
• The cube root of 21815330240 is 2794.1771099755

Scales and comparisons

• 21,815,330,240 seconds is equal to 693 years, 34 weeks, 2 days, 5 hours, 57 minutes, 20 seconds.
• To count from 1 to 21,815,330,240 would take you about one thousand, three hundred eighty-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 21815330240 cubic inches would be around 232.8 feet tall.

Recreational maths with 21815330240

• 21815330240 backwards is 04203351812
• The number of decimal digits it has is: 11
• The sum of 21815330240's digits is 29
• More coming soon!