21429144
21,429,144 is an even composite number composed of five prime numbers multiplied together.
21429144 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 21429144:
23 × 33 × 11 × 29 × 311
(2 × 2 × 2 × 3 × 3 × 3 × 11 × 29 × 311)See below for interesting mathematical facts about the number 21429144 from the Numbermatics database.
Names of 21429144
- Cardinal: 21429144 can be written as Twenty-one million, four hundred twenty-nine thousand, one hundred forty-four.
Scientific notation
- Scientific notation: 2.1429144 × 107
Factors of 21429144
Divisors of 21429144
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 4 6 8 9 11 12 18 22 24 27 29 33 36 44 54 58 66 72 87 88 99 108 116 132 174 198 216 232 261 264 297 311 319 348 396 522 594 622 638 696 783 792 933 957 1044 1188 1244 1276 1566 1866 1914 2088 2376 2488 2552 2799 2871 3132 3421 3732 3828 5598 5742 6264 6842 7464 7656 8397 8613 9019 10263 11196 11484 13684 16794 17226 18038 20526 22392 22968 27057 27368 30789 33588 34452 36076 41052 54114 61578 67176 68904 72152 81171 82104 92367 99209 108228 123156 162342 184734 198418 216456 243513 246312 297627 324684 369468 396836 487026 595254 649368 738936 793672 892881 974052 1190508 1785762 1948104 2381016 2678643 3571524 5357286 7143048 10714572 21429144
- Sum of all divisors σ(n): 67392000
- Sum of proper divisors (its aliquot sum) s(n): 45962856
- 21429144 is an abundant number, because the sum of its proper divisors (45962856) is greater than itself. Its abundance is 24533712
Bases of 21429144
- Binary: 10100011011111011100110002
- Hexadecimal: 0x146FB98
- Base-36: CRAU0
Squares and roots of 21429144
- 21429144 squared (214291442) is 459208212572736
- 21429144 cubed (214291443) is 9840438913203770217984
-
The
square root of 21429144 is 4629.1623432323 -
The
cube root of 21429144 is 277.7590860075
Scales and comparisons
How big is 21429144?- 21,429,144 seconds is equal to 35 weeks, 3 days, 32 minutes, 24 seconds.
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To count from 1 to 21,429,144 would take you about forty-eight minutes!
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 21429144 cubic inches would be around 23.1 feet tall.
Recreational maths with 21429144
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The information we have on file for 21429144 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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