21213144
21,213,144 is an even composite number composed of five prime numbers multiplied together.
21213144 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 21213144:
23 × 33 × 17 × 53 × 109
(2 × 2 × 2 × 3 × 3 × 3 × 17 × 53 × 109)See below for interesting mathematical facts about the number 21213144 from the Numbermatics database.
Names of 21213144
- Cardinal: 21213144 can be written as Twenty-one million, two hundred thirteen thousand, one hundred forty-four.
Scientific notation
- Scientific notation: 2.1213144 × 107
Factors of 21213144
Divisors of 21213144
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 4 6 8 9 12 17 18 24 27 34 36 51 53 54 68 72 102 106 108 109 136 153 159 204 212 216 218 306 318 327 408 424 436 459 477 612 636 654 872 901 918 954 981 1224 1272 1308 1431 1802 1836 1853 1908 1962 2616 2703 2862 2943 3604 3672 3706 3816 3924 5406 5559 5724 5777 5886 7208 7412 7848 8109 10812 11118 11448 11554 11772 14824 16218 16677 17331 21624 22236 23108 23544 24327 32436 33354 34662 44472 46216 48654 50031 51993 64872 66708 69324 97308 98209 100062 103986 133416 138648 155979 194616 196418 200124 207972 294627 311958 392836 400248 415944 589254 623916 785672 883881 1178508 1247832 1767762 2357016 2651643 3535524 5303286 7071048 10606572 21213144
- Sum of all divisors σ(n): 64152000
- Sum of proper divisors (its aliquot sum) s(n): 42938856
- 21213144 is an abundant number, because the sum of its proper divisors (42938856) is greater than itself. Its abundance is 21725712
Bases of 21213144
- Binary: 10100001110101111110110002
- Hexadecimal: 0x143AFD8
- Base-36: CMO60
Squares and roots of 21213144
- 21213144 squared (212131442) is 449997478364736
- 21213144 cubed (212131443) is 9545861308188029289984
-
The
square root of 21213144 is 4605.7728993079 -
The
cube root of 21213144 is 276.8226871155
Scales and comparisons
How big is 21213144?- 21,213,144 seconds is equal to 35 weeks, 12 hours, 32 minutes, 24 seconds.
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To count from 1 to 21,213,144 would take you about four days!
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 21213144 cubic inches would be around 23.1 feet tall.
Recreational maths with 21213144
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The information we have on file for 21213144 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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