21444975216

Names of 21444975216

• Cardinal: 21444975216 can be written as Twenty-one billion, four hundred forty-four million, nine hundred seventy-five thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 2.1444975216 × 10¹⁰

Factors of 21444975216

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 699

Divisors of 21444975216

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 29 36 41 42 48 56 58 63 72 82 84 87 112 116 123 126 144 164 168 174 203 232 246 252 261 287 328 336 348 369 406 464 492 504 522 574 609 617 656 696 738 812 841 861 984 1008 1044 1148 1189 1218 1234 1392 1476 1624 1682 1722 1827 1851 1968 2088 2296 2378 2436 2468 2523 2583 2952 3248 3364 3444 3567 3654 3702 4176 4319 4592 4756 4872 4936 5046 5166 5553 5887 5904 6728 6888 7134 7308 7404 7569 8323 8638 9512 9744 9872 10092 10332 10701 11106 11774 12957 13456 13776 14268 14616 14808 15138 16646 17276 17661 17893 19024 20184 20664 21402 22212 23548 24969 25297 25914 28536 29232 29616 30276 33292 34481 34552 35322 35786 38871 40368 41328 42804 44424 47096 49938 50594 51828 52983 53679 57072 60552 66584 68962 69104 70644 71572 74907 75891 77742 85608 88848 94192 99876 101188 103443 103656 105966 107358 121104 125251 133168 137924 141288 143144 149814 151782 155484 161037 171216 177079 199752 202376 206886 207312 211932 214716 227673 241367 250502 275848 282576 286288 299628 303564 310329 310968 322074 354158 375753 399504 404752 413772 423864 429432 455346 482734 501004 518897 531237 551696 599256 607128 620658 621936 644148 708316 724101 733613 751506 827544 847728 858864 910692 965468 1002008 1037794 1062474 1127259 1198512 1214256 1241316 1288296 1416632 1448202 1467226 1503012 1556691 1593711 1655088 1821384 1930936 2004016 2075588 2124948 2172303 2200839 2254518 2482632 2576592 2833264 2896404 2934452 3006024 3113382 3187422 3632279 3642768 3861872 4151176 4249896 4344606 4401678 4509036 4670073 4965264 5135291 5792808 5868904 6012048 6226764 6374844 6602517 7264558 8302352 8499792 8689212 8803356 9018072 9340146 10270582 10896837 11585616 11737808 12453528 12749688 13205034 14529116 15405873 17378424 17606712 18036144 18680292 20541164 21274777 21793674 24907056 25499376 26410068 29058232 30811746 32690511 34756848 35213424 37360584 41082328 42549554 43587348 46217619 52820136 58116464 61623492 63824331 65381022 74721168 82164656 85099108 87174696 92435238 105640272 123246984 127648662 130762044 148923439 170198216 174349392 184870476 191472993 246493968 255297324 261524088 297846878 340396432 369740952 382945986 446770317 510594648 523048176 595693756 739481904 765891972 893540634 1021189296 1191387512 1340310951 1531783944 1787081268 2382775024 2680621902 3063567888 3574162536 5361243804 7148325072 10722487608 21444975216
• Sum of all divisors σ(n): 72887147424
• Sum of proper divisors (its aliquot sum) s(n): 51442172208
• 21444975216 is an abundant number, because the sum of its proper divisors (51442172208) is greater than itself. Its abundance is 29997196992

Bases of 21444975216

• Binary: 10011111110001110000101101001110000₂
• Hexadecimal: 0x4FE385A70
• Base-36: 9UNS8S0

Squares and roots of 21444975216

• 21444975216 squared (21444975216²) is 459886962014854246656
• 21444975216 cubed (21444975216³) is 9862264502570082743390270877696
• The square root of 21444975216 is 146441.0298242949
• The cube root of 21444975216 is 2778.2746922851

Scales and comparisons

• 21,444,975,216 seconds is equal to 681 years, 45 weeks, 6 days, 17 hours, 33 minutes, 36 seconds.
• To count from 1 to 21,444,975,216 would take you about one thousand, three hundred sixty-three 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 21444975216 cubic inches would be around 231.5 feet tall.

Recreational maths with 21444975216

• 21444975216 backwards is 61257944412
• The number of decimal digits it has is: 11
• The sum of 21444975216's digits is 45
• More coming soon!