21143215665
21,143,215,665 is an odd composite number composed of six prime numbers multiplied together.
21143215665 is an odd composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred sixteen divisors.
Prime factorization of 21143215665:
32 × 5 × 11 × 132 × 312 × 263
(3 × 3 × 5 × 11 × 13 × 13 × 31 × 31 × 263)See below for interesting mathematical facts about the number 21143215665 from the Numbermatics database.
Names of 21143215665
- Cardinal: 21143215665 can be written as Twenty-one billion, one hundred forty-three million, two hundred fifteen thousand, six hundred sixty-five.
Scientific notation
- Scientific notation: 2.1143215665 × 1010
Factors of 21143215665
Divisors of 21143215665
- Number of divisors d(n): 216
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Complete list of divisors:
1 3 5 9 11 13 15 31 33 39 45 55 65 93 99 117 143 155 165 169 195 263 279 341 403 429 465 495 507 585 715 789 845 961 1023 1209 1287 1315 1395 1521 1705 1859 2015 2145 2367 2535 2883 2893 3069 3419 3627 3945 4433 4805 5115 5239 5577 6045 6435 7605 8153 8649 8679 9295 10257 10571 11835 12493 13299 14415 14465 15345 15717 16731 17095 18135 22165 24459 26037 26195 27885 30771 31713 37479 37609 39897 40765 43245 43395 44447 47151 51285 52855 57629 62465 66495 73377 78585 83655 89683 95139 105989 112437 112827 122295 130185 133341 137423 153855 158565 162409 172887 187395 188045 199485 222235 235755 252743 269049 288145 317967 338481 366885 400023 412269 448415 475695 487227 488917 518661 529945 562185 564135 666705 687115 758229 807147 812045 864435 953901 1165879 1236807 1263715 1345245 1377857 1461681 1466751 1589835 1692405 1786499 2000115 2061345 2274687 2436135 2444585 2593305 2780173 3285659 3497637 3791145 4035735 4133571 4400253 4769505 5359497 5829395 6184035 6889285 7308405 7333755 8340519 8932495 9856977 10492911 11373435 12400713 13900865 15156427 16078491 16428295 17488185 20667855 22001265 25021557 26797485 29570931 36142249 41702595 42713567 45469281 49284885 52464555 62003565 75782135 80392455 108426747 125107785 128140701 136407843 147854655 180711245 213567835 227346405 325280241 384422103 469849237 542133735 640703505 682039215 1409547711 1626401205 1922110515 2349246185 4228643133 7047738555 21143215665
- Sum of all divisors σ(n): 44903491776
- Sum of proper divisors (its aliquot sum) s(n): 23760276111
- 21143215665 is an abundant number, because the sum of its proper divisors (23760276111) is greater than itself. Its abundance is 2617060446
Bases of 21143215665
- Binary: 100111011000011101111011110001100012
- Hexadecimal: 0x4EC3BDE31
- Base-36: 9PO4HM9
Squares and roots of 21143215665
- 21143215665 squared (211432156652) is 447035568656701392225
- 21143215665 cubed (211432156653) is 9451769438034551883318929204625
-
The
square root of 21143215665 is 145407.0688274817 -
The
cube root of 21143215665 is 2765.1817372291
Scales and comparisons
How big is 21143215665?- 21,143,215,665 seconds is equal to 672 years, 15 weeks, 3 hours, 27 minutes, 45 seconds.
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To count from 1 to 21,143,215,665 would take you about one thousand, three hundred forty-four 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 21143215665 cubic inches would be around 230.4 feet tall.
Recreational maths with 21143215665
- 21143215665 backwards is 56651234112
- The number of decimal digits it has is: 11
- The sum of 21143215665's digits is 36
- More coming soon!
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The information we have on file for 21143215665 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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