21318232572

Names of 21318232572

• Cardinal: 21318232572 can be written as Twenty-one billion, three hundred eighteen million, two hundred thirty-two thousand, five hundred seventy-two.

Scientific notation

• Scientific notation: 2.1318232572 × 10¹⁰

Factors of 21318232572

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 516

Divisors of 21318232572

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 18 21 26 28 29 36 39 41 42 52 58 63 78 82 84 87 91 116 117 123 126 156 164 169 174 182 203 234 246 252 261 273 287 338 348 364 369 377 406 421 468 492 507 522 533 546 574 609 676 738 754 812 819 842 861 1014 1044 1066 1092 1131 1148 1183 1189 1218 1263 1476 1508 1521 1599 1638 1684 1722 1827 2028 2132 2262 2366 2378 2436 2526 2583 2639 2947 3042 3198 3276 3393 3444 3549 3567 3654 3731 3789 4524 4732 4756 4797 4901 5052 5166 5278 5473 5894 6084 6396 6786 6929 7098 7134 7308 7462 7578 7917 8323 8841 9594 9802 10332 10556 10647 10701 10946 11193 11788 12209 13572 13858 14196 14268 14703 14924 15156 15457 15834 16419 16646 17261 17682 19188 19604 20787 21294 21402 21892 22386 23751 24418 24969 26523 27716 29406 30914 31668 32838 33292 33579 34307 34522 35364 36627 38311 41574 42588 42804 44109 44772 46371 47502 48503 48836 49257 49938 51783 53046 58812 61828 62361 65676 67158 68614 69044 71149 73254 74907 76622 83148 85463 88218 92742 95004 97006 98514 99876 102921 103566 106092 108199 109881 114933 120827 124722 134316 137228 139113 142298 145509 146508 149814 153244 155349 158717 170926 176436 185484 194012 197028 200941 205842 207132 213447 216398 219762 224393 229866 241654 249444 256389 278226 284596 291018 299628 308763 310698 317434 324597 341852 344799 362481 401882 411684 426894 432796 436527 439524 448786 459732 476151 483308 498043 500569 512778 556452 582036 602823 617526 621396 634868 640341 649194 673179 689598 724962 769167 803764 853788 873054 897572 952302 973791 996086 1001138 1025556 1087443 1111019 1205646 1235052 1280682 1298388 1346358 1379196 1406587 1428453 1449924 1494129 1501707 1538334 1570751 1746108 1808469 1904604 1947582 1992172 2002276 2019537 2063321 2174886 2222038 2411292 2561364 2692716 2813174 2856906 2917109 2988258 3003414 3076668 3141502 3333057 3503983 3616938 3895164 4039074 4126642 4219761 4349772 4444076 4482387 4505121 4712253 5626348 5713812 5834218 5976516 6006828 6189963 6283004 6507397 6666114 7007966 7233876 8078148 8253284 8439522 8751327 8964774 9010242 9424506 9999171 10511949 11668436 12379926 12659283 13014794 13332228 14015932 14136759 14443247 16879044 17502654 17929548 18020484 18569889 18849012 19522191 19998342 20419763 21023898 24759852 25318566 26029588 26253981 28273518 28886494 31535847 35005308 37139778 39044382 39996684 40839526 42047796 43329741 45551779 50637132 52507962 56547036 57772988 58566573 61259289 63071694 74279556 78088764 81679052 84596161 86659482 91103558 105015924 117133146 122518578 126143388 129989223 136655337 169192322 173318964 182207116 183777867 234266292 245037156 253788483 259978446 273310674 338384644 367555734 409966011 507576966 519956892 546621348 592173127 735111468 761365449 819932022 1015153932 1184346254 1522730898 1639864044 1776519381 2368692508 3045461796 3553038762 5329558143 7106077524 10659116286 21318232572
• Sum of all divisors σ(n): 70837865280
• Sum of proper divisors (its aliquot sum) s(n): 49519632708
• 21318232572 is an abundant number, because the sum of its proper divisors (49519632708) is greater than itself. Its abundance is 28201400136

Bases of 21318232572

• Binary: 10011110110101010100110100111111100₂
• Hexadecimal: 0x4F6AA69FC
• Base-36: 9SKBPJ0

Squares and roots of 21318232572

• 21318232572 squared (21318232572²) is 454467039993881735184
• 21318232572 cubed (21318232572³) is 9688434054897996287715427213248
• The square root of 21318232572 is 146007.6455943319
• The cube root of 21318232572 is 2772.7905502431

Scales and comparisons

• 21,318,232,572 seconds is equal to 677 years, 44 weeks, 2 days, 19 hours, 16 minutes, 12 seconds.
• To count from 1 to 21,318,232,572 would take you about one thousand, three hundred fifty-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 21318232572 cubic inches would be around 231.1 feet tall.

Recreational maths with 21318232572

• 21318232572 backwards is 27523281312
• 21318232572 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21318232572's digits is 36
• More coming soon!