21518188224

Names of 21518188224

• Cardinal: 21518188224 can be written as Twenty-one billion, five hundred eighteen million, one hundred eighty-eight thousand, two hundred twenty-four.

Scientific notation

• Scientific notation: 2.1518188224 × 10¹⁰

Factors of 21518188224

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 254

Divisors of 21518188224

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 24 26 31 32 39 47 48 52 61 62 64 78 93 94 96 97 104 122 124 141 156 183 186 188 192 194 208 244 248 282 291 312 366 372 376 388 403 416 488 496 564 582 611 624 732 744 752 776 793 806 832 976 992 1128 1164 1209 1222 1248 1261 1457 1464 1488 1504 1552 1586 1612 1833 1891 1952 1984 2256 2328 2379 2418 2444 2496 2522 2867 2914 2928 2976 3007 3008 3104 3172 3224 3666 3782 3783 3904 4371 4512 4559 4656 4758 4836 4888 5044 5673 5734 5828 5856 5917 5952 6014 6208 6344 6448 7332 7564 7566 8601 8742 9021 9024 9118 9312 9516 9672 9776 10088 11346 11468 11656 11712 11834 12028 12688 12896 13677 14664 15128 15132 17202 17484 17751 18042 18236 18624 18941 19032 19344 19552 20176 22692 22936 23312 23668 24056 24583 25376 25792 27354 29328 30256 30264 34404 34968 35502 36084 36472 37271 37882 38064 38688 39091 39104 40352 45384 45872 46624 47336 48112 49166 50752 54708 56823 58656 59267 60512 60528 68808 69936 71004 72168 72944 73749 74542 75764 76128 76921 77376 78182 80704 88877 90768 91744 93248 94672 96224 98332 109416 111813 113646 117273 117312 118534 121024 121056 137616 139872 141329 142008 144336 145888 147498 149084 151528 152256 153842 156364 177754 177801 181536 183427 183488 189344 192448 196664 218832 223626 227292 230763 234546 237068 242112 266631 275232 278099 279744 282658 284016 288672 291776 294996 298168 303056 307684 312728 355508 355602 363072 366854 378688 393328 423987 437664 447252 454584 461526 469092 474136 533262 550281 550464 556198 565316 568032 577344 589992 596336 606112 615368 625456 711016 711204 733708 786656 834297 847974 875328 894504 909168 923052 938184 948272 1066524 1100562 1112396 1130632 1136064 1155401 1179984 1192672 1212224 1230736 1250912 1422032 1422408 1467416 1573312 1668594 1695948 1789008 1818336 1837277 1846104 1876368 1896544 2133048 2201124 2224792 2261264 2310802 2359968 2384551 2385344 2461472 2501824 2844064 2844816 2934832 3337188 3391896 3466203 3578016 3615287 3636672 3674554 3692208 3752736 3793088 4266096 4402248 4449584 4522528 4621604 4719936 4769102 4922944 5511831 5688128 5689632 5869664 6674376 6783792 6932406 7153653 7156032 7230574 7349108 7384416 7505472 8532192 8621069 8804496 8899168 9045056 9243208 9538204 10845861 11023662 11379264 11739328 13348752 13567584 13864812 14307306 14461148 14698216 14768832 17064384 17242138 17608992 17798336 18486416 19076408 21691722 22047324 25863207 26697504 27135168 27729624 28614612 28922296 29396432 34484276 35217984 36972832 38152816 43383444 44094648 51726414 53395008 55459248 57229224 57844592 58792864 68968552 73945664 76305632 86766888 88189296 103452828 110918496 112073897 114458448 115689184 117585728 137937104 152611264 173533776 176378592 206905656 221836992 224147794 228916896 231378368 275874208 336221691 347067552 352757184 413811312 448295588 457833792 551748416 672443382 694135104 827622624 896591176 1344886764 1655245248 1793182352 2689773528 3586364704 5379547056 7172729408 10759094112 21518188224
• Sum of all divisors σ(n): 66374418432
• Sum of proper divisors (its aliquot sum) s(n): 44856230208
• 21518188224 is an abundant number, because the sum of its proper divisors (44856230208) is greater than itself. Its abundance is 23338041984

Bases of 21518188224

• Binary: 10100000010100101010111111011000000₂
• Hexadecimal: 0x502957EC0
• Base-36: 9VVDGAO

Squares and roots of 21518188224

• 21518188224 squared (21518188224²) is 463032424443492274176
• 21518188224 cubed (21518188224³) is 9963618862990125207608982503424
• The square root of 21518188224 is 146690.7912038107
• The cube root of 21518188224 is 2781.4327717861

Scales and comparisons

• 21,518,188,224 seconds is equal to 684 years, 11 weeks, 2 hours, 30 minutes, 24 seconds.
• To count from 1 to 21,518,188,224 would take you about one thousand, three hundred sixty-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 21518188224 cubic inches would be around 231.8 feet tall.

Recreational maths with 21518188224

• 21518188224 backwards is 42288181512
• The number of decimal digits it has is: 11
• The sum of 21518188224's digits is 42
• More coming soon!