21216742488
21,216,742,488 is an even composite number composed of six prime numbers multiplied together.
21216742488 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21216742488:
23 × 32 × 31 × 432 × 53 × 97
(2 × 2 × 2 × 3 × 3 × 31 × 43 × 43 × 53 × 97)See below for interesting mathematical facts about the number 21216742488 from the Numbermatics database.
Names of 21216742488
- Cardinal: 21216742488 can be written as Twenty-one billion, two hundred sixteen million, seven hundred forty-two thousand, four hundred eighty-eight.
Scientific notation
- Scientific notation: 2.1216742488 × 1010
Factors of 21216742488
Divisors of 21216742488
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 6 8 9 12 18 24 31 36 43 53 62 72 86 93 97 106 124 129 159 172 186 194 212 248 258 279 291 318 344 372 387 388 424 477 516 558 582 636 744 774 776 873 954 1032 1116 1164 1272 1333 1548 1643 1746 1849 1908 2232 2279 2328 2666 3007 3096 3286 3492 3698 3816 3999 4171 4558 4929 5141 5332 5547 6014 6572 6837 6984 7396 7998 8342 9021 9116 9858 10282 10664 11094 11997 12028 12513 13144 13674 14787 14792 15423 15996 16641 16684 18042 18232 19716 20511 20564 22188 23994 24056 25026 27063 27348 29574 30846 31992 33282 33368 36084 37539 39432 41022 41128 44376 46269 47988 50052 54126 54696 57319 59148 61692 66564 70649 72168 75078 82044 92538 95976 97997 100104 108252 114638 118296 123384 129301 133128 141298 150156 159371 164088 171957 179353 185076 195994 211947 216504 221063 229276 258602 282596 293991 300312 318742 343914 358706 370152 387903 391988 423894 442126 458552 478113 515871 517204 538059 565192 587982 635841 637484 663189 687828 717412 775806 783976 847788 881973 884252 956226 1031742 1034408 1076118 1163709 1175964 1271682 1274968 1326378 1375656 1434339 1434824 1551612 1614177 1695576 1763946 1768504 1912452 1989567 2063484 2152236 2327418 2351928 2543364 2652756 2868678 3037907 3103224 3228354 3527892 3824904 3979134 4126968 4304472 4654836 5086728 5305512 5559943 5737356 6075814 6456708 6852953 7055784 7958268 9113721 9309672 9505709 11119886 11474712 12151628 12913416 13705906 15916536 16679829 18227442 19011418 20558859 22239772 24303256 27341163 27411812 28517127 33359658 36454884 38022836 41117718 44479544 50039487 54682326 54823624 57034254 61676577 66719316 72909768 76045672 82235436 85551381 100078974 109364652 114068508 123353154 133438632 164470872 171102762 200157948 218729304 228137016 246706308 294676979 342205524 400315896 493412616 589353958 684411048 884030937 1178707916 1768061874 2357415832 2652092811 3536123748 5304185622 7072247496 10608371244 21216742488
- Sum of all divisors σ(n): 62510797440
- Sum of proper divisors (its aliquot sum) s(n): 41294054952
- 21216742488 is an abundant number, because the sum of its proper divisors (41294054952) is greater than itself. Its abundance is 20077312464
Bases of 21216742488
- Binary: 100111100001001110111001100010110002
- Hexadecimal: 0x4F09DCC58
- Base-36: 9QVWFA0
Squares and roots of 21216742488
- 21216742488 squared (212167424882) is 450150161802104430144
- 21216742488 cubed (212167424883) is 9550720063886783710849232758272
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The
square root of 21216742488 is 145659.6803786141 -
The
cube root of 21216742488 is 2768.3833915331
Scales and comparisons
How big is 21216742488?- 21,216,742,488 seconds is equal to 674 years, 32 weeks, 4 days, 3 hours, 34 minutes, 48 seconds.
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To count from 1 to 21,216,742,488 would take you about one thousand, three hundred forty-nine 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 21216742488 cubic inches would be around 230.7 feet tall.
Recreational maths with 21216742488
- 21216742488 backwards is 88424761212
- The number of decimal digits it has is: 11
- The sum of 21216742488's digits is 45
- More coming soon!
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