21471636888

Names of 21471636888

• Cardinal: 21471636888 can be written as Twenty-one billion, four hundred seventy-one million, six hundred thirty-six thousand, eight hundred eighty-eight.

Scientific notation

• Scientific notation: 2.1471636888 × 10¹⁰

Factors of 21471636888

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 193

Divisors of 21471636888

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 17 18 19 24 26 29 31 34 36 38 39 51 52 57 58 62 68 72 76 78 79 87 93 102 104 114 116 117 124 136 152 153 156 158 171 174 186 204 221 228 232 234 237 247 248 261 279 306 312 316 323 342 348 372 377 403 408 442 456 468 474 493 494 522 527 551 558 589 612 632 646 663 684 696 711 741 744 754 806 884 899 936 948 969 986 988 1027 1044 1054 1102 1116 1131 1178 1209 1224 1292 1326 1343 1368 1422 1479 1482 1501 1508 1581 1612 1653 1767 1768 1798 1896 1938 1972 1976 1989 2054 2088 2108 2204 2223 2232 2262 2291 2356 2418 2449 2584 2652 2686 2697 2844 2907 2958 2964 3002 3016 3081 3162 3224 3306 3393 3534 3596 3627 3876 3944 3978 4029 4108 4199 4216 4408 4437 4446 4503 4524 4582 4712 4743 4836 4898 4959 5301 5304 5372 5394 5688 5814 5916 5928 6004 6162 6324 6409 6612 6786 6851 6873 7068 7163 7192 7254 7347 7657 7752 7956 8058 8091 8216 8398 8874 8892 9006 9048 9164 9243 9367 9486 9672 9796 9918 10013 10602 10744 10788 11628 11687 11832 12008 12087 12324 12597 12648 12818 13224 13509 13572 13702 13746 14136 14326 14508 14694 15283 15314 15912 16116 16182 16796 17081 17459 17748 17784 18012 18328 18486 18734 18972 19227 19513 19592 19836 20026 20553 20619 21204 21489 21576 22041 22971 23256 23374 24174 24648 25194 25517 25636 27018 27144 27404 27492 28101 28652 29016 29388 29783 30039 30566 30628 31837 32232 32364 33592 34162 34918 35061 35496 36024 36972 37468 37791 37944 38454 38947 39026 39672 40052 41106 41238 41633 42408 42978 43529 44082 45849 45942 46531 46748 48348 50388 51034 51243 51272 52377 54036 54808 54984 56202 57304 57681 58539 58776 59566 60078 61132 61256 61659 63674 64467 64728 68324 68913 69836 70122 71021 73944 74936 75582 76551 76908 77894 78052 80104 82212 82476 83266 84303 85956 87058 88164 89349 90117 91698 91884 93062 93496 95511 96696 100776 102068 102486 104754 105183 108072 112404 115362 116841 117078 119132 120156 121771 122264 123318 124899 127348 128934 130169 130587 136648 137547 137826 139593 139672 140244 142042 151164 153102 153729 153816 155788 156104 157131 164424 164952 166532 168606 171912 174116 175617 176328 178698 180234 183396 183768 186124 191022 198679 204136 204972 209508 210366 213063 222053 224808 229653 230724 233682 234156 238264 240312 243542 246636 249798 254696 257868 260338 261174 268047 275094 275652 279186 280488 284084 286533 290377 302328 306204 307458 311576 314262 331721 333064 337212 348232 350523 351234 357396 360468 365313 366792 372248 374697 382044 390507 391761 397358 409944 418779 419016 420732 426126 444106 459306 461448 467364 468312 487084 493272 499596 506311 515736 520676 522348 536094 541229 550188 551304 558372 565877 568168 573066 580754 596037 604903 612408 614916 628524 639189 663442 666159 674424 701046 702468 714792 720936 730626 739993 749394 764088 781014 783522 791027 794716 837558 841464 852252 871131 888212 918612 923273 934728 974168 995163 999192 1012622 1041352 1044696 1072188 1082458 1095939 1100376 1116744 1131754 1146132 1161508 1171521 1192074 1207357 1209806 1229832 1257048 1278378 1326884 1332318 1349399 1402092 1404936 1461252 1479986 1498788 1518933 1562028 1567044 1582054 1589432 1623687 1675116 1697631 1704504 1742262 1776424 1788111 1814709 1837224 1846546 1990326 1998477 2025244 2144376 2164916 2191878 2219979 2263508 2292264 2323016 2343042 2373081 2384148 2414714 2419612 2556756 2613393 2653768 2664636 2698798 2769819 2804184 2922504 2959972 2985489 2997576 3037866 3124056 3134088 3164108 3247374 3350232 3395262 3484524 3576222 3622071 3629418 3693092 3774901 3980652 3996954 4048197 4050488 4329832 4383756 4439958 4527016 4556799 4686084 4746162 4768296 4829428 4839224 4871061 5092893 5113512 5226786 5329272 5397596 5444127 5539638 5919944 5970978 6075732 6328216 6494748 6659937 6790524 6969048 7119243 7152444 7244142 7258836 7386184 7549802 7961304 7993908 8096394 8309457 8767512 8879916 9113598 9372168 9492324 9619909 9658856 9742122 10185786 10283351 10453572 10795192 10866213 10888254 11079276 11324703 11941956 12144591 12151464 12989496 13319874 13581048 14238486 14304888 14488284 14517672 15099604 15695641 15987816 16192788 16618914 17542187 17759832 18227196 18984648 19239818 19484244 20371572 20566702 20907144 21732426 21776508 22158552 22649406 22939783 23883912 24289182 26639748 28476972 28859727 28976568 30199208 30850053 31391282 32385576 33237828 33974109 35084374 36454392 38479636 38968488 40743144 41133404 43464852 43553016 45298812 45879566 47086923 48578364 52626561 53279496 56953944 57719454 61700106 62782564 66475656 67948218 68819349 70168748 76959272 82266808 86579181 86929704 90597624 91759132 92550159 94173846 97156728 105253122 115438908 123400212 125565128 135896436 137638698 140337496 141260769 157879683 173158362 183518264 185100318 188347692 206458047 210506244 230877816 246800424 271792872 275277396 282521538 298217179 315759366 346316724 370200636 376695384 412916094 421012488 550554792 565043076 596434358 631518732 692633448 740401272 825832188 894651537 1130086152 1192868716 1263037464 1651664376 1789303074 2385737432 2683954611 3578606148 5367909222 7157212296 10735818444 21471636888
• Sum of all divisors σ(n): 75479040000
• Sum of proper divisors (its aliquot sum) s(n): 54007403112
• 21471636888 is an abundant number, because the sum of its proper divisors (54007403112) is greater than itself. Its abundance is 32535766224

Bases of 21471636888

• Binary: 10011111111110011110010110110011000₂
• Hexadecimal: 0x4FFCF2D98
• Base-36: 9V3NP20

Squares and roots of 21471636888

• 21471636888 squared (21471636888²) is 461031190650122324544
• 21471636888 cubed (21471636888³) is 9899094319681727205391258179072
• The square root of 21471636888 is 146532.0336581731
• The cube root of 21471636888 is 2779.4255877203

Scales and comparisons

• 21,471,636,888 seconds is equal to 682 years, 38 weeks, 7 hours, 34 minutes, 48 seconds.
• To count from 1 to 21,471,636,888 would take you about one thousand, three hundred sixty-five 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 21471636888 cubic inches would be around 231.6 feet tall.

Recreational maths with 21471636888

• 21471636888 backwards is 88863617412
• The number of decimal digits it has is: 11
• The sum of 21471636888's digits is 54
• More coming soon!