21648162816
21,648,162,816 is an even composite number composed of four prime numbers multiplied together.
21648162816 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 21648162816:
214 × 33 × 7 × 6991
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 7 × 6991)See below for interesting mathematical facts about the number 21648162816 from the Numbermatics database.
Names of 21648162816
- Cardinal: 21648162816 can be written as Twenty-one billion, six hundred forty-eight million, one hundred sixty-two thousand, eight hundred sixteen.
Scientific notation
- Scientific notation: 2.1648162816 × 1010
Factors of 21648162816
Divisors of 21648162816
- Number of divisors d(n): 240
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Complete list of divisors:
1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 64 72 84 96 108 112 126 128 144 168 189 192 216 224 252 256 288 336 378 384 432 448 504 512 576 672 756 768 864 896 1008 1024 1152 1344 1512 1536 1728 1792 2016 2048 2304 2688 3024 3072 3456 3584 4032 4096 4608 5376 6048 6144 6912 6991 7168 8064 8192 9216 10752 12096 12288 13824 13982 14336 16128 16384 18432 20973 21504 24192 24576 27648 27964 28672 32256 36864 41946 43008 48384 48937 49152 55296 55928 57344 62919 64512 73728 83892 86016 96768 97874 110592 111856 114688 125838 129024 146811 147456 167784 172032 188757 193536 195748 221184 223712 251676 258048 293622 335568 344064 377514 387072 391496 440433 442368 447424 503352 516096 587244 671136 755028 774144 782992 880866 894848 1006704 1032192 1174488 1321299 1342272 1510056 1548288 1565984 1761732 1789696 2013408 2348976 2642598 2684544 3020112 3096576 3131968 3523464 3579392 4026816 4697952 5285196 5369088 6040224 6263936 7046928 7158784 8053632 9395904 10570392 10738176 12080448 12527872 14093856 14317568 16107264 18791808 21140784 21476352 24160896 25055744 28187712 28635136 32214528 37583616 42281568 42952704 48321792 50111488 56375424 57270272 64429056 75167232 84563136 85905408 96643584 100222976 112750848 114540544 128858112 150334464 169126272 171810816 193287168 200445952 225501696 257716224 300668928 338252544 343621632 386574336 400891904 451003392 515432448 601337856 676505088 773148672 801783808 902006784 1030864896 1202675712 1353010176 1546297344 1804013568 2405351424 2706020352 3092594688 3608027136 5412040704 7216054272 10824081408 21648162816
- Sum of all divisors σ(n): 73314196480
- Sum of proper divisors (its aliquot sum) s(n): 51666033664
- 21648162816 is an abundant number, because the sum of its proper divisors (51666033664) is greater than itself. Its abundance is 30017870848
Bases of 21648162816
- Binary: 101000010100101010011000000000000002
- Hexadecimal: 0x50A54C000
- Base-36: 9Y0R9C0
Squares and roots of 21648162816
- 21648162816 squared (216481628162) is 468642953308045049856
- 21648162816 cubed (216481628163) is 10145258955783645041945525354496
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The
square root of 21648162816 is 147133.1465578033 -
The
cube root of 21648162816 is 2787.0216894145
Scales and comparisons
How big is 21648162816?- 21,648,162,816 seconds is equal to 688 years, 17 weeks, 6 days, 10 hours, 33 minutes, 36 seconds.
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To count from 1 to 21,648,162,816 would take you about one thousand, three hundred seventy-six 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 21648162816 cubic inches would be around 232.3 feet tall.
Recreational maths with 21648162816
- 21648162816 backwards is 61826184612
- The number of decimal digits it has is: 11
- The sum of 21648162816's digits is 45
- More coming soon!
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