21397376
21,397,376 is an even composite number composed of five prime numbers multiplied together.
21397376 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 21397376:
27 × 7 × 11 × 13 × 167
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 7 × 11 × 13 × 167)See below for interesting mathematical facts about the number 21397376 from the Numbermatics database.
Names of 21397376
- Cardinal: 21397376 can be written as Twenty-one million, three hundred ninety-seven thousand, three hundred seventy-six.
Scientific notation
- Scientific notation: 2.1397376 × 107
Factors of 21397376
Divisors of 21397376
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 4 7 8 11 13 14 16 22 26 28 32 44 52 56 64 77 88 91 104 112 128 143 154 167 176 182 208 224 286 308 334 352 364 416 448 572 616 668 704 728 832 896 1001 1144 1169 1232 1336 1408 1456 1664 1837 2002 2171 2288 2338 2464 2672 2912 3674 4004 4342 4576 4676 4928 5344 5824 7348 8008 8684 9152 9352 9856 10688 11648 12859 14696 15197 16016 17368 18304 18704 21376 23881 25718 29392 30394 32032 34736 37408 47762 51436 58784 60788 64064 69472 74816 95524 102872 117568 121576 128128 138944 149632 167167 191048 205744 235136 243152 277888 334334 382096 411488 486304 668668 764192 822976 972608 1337336 1528384 1645952 1945216 2674672 3056768 5349344 10698688 21397376
- Sum of all divisors σ(n): 57576960
- Sum of proper divisors (its aliquot sum) s(n): 36179584
- 21397376 is an abundant number, because the sum of its proper divisors (36179584) is greater than itself. Its abundance is 14782208
Bases of 21397376
- Binary: 10100011001111111100000002
- Hexadecimal: 0x1467F80
- Base-36: CQMBK
Squares and roots of 21397376
- 21397376 squared (213973762) is 457847699685376
- 21397376 cubed (213973763) is 9796739380903071973376
-
The
square root of 21397376 is 4625.7297802617 -
The
cube root of 21397376 is 277.6217618941
Scales and comparisons
How big is 21397376?- 21,397,376 seconds is equal to 35 weeks, 2 days, 15 hours, 42 minutes, 56 seconds.
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To count from 1 to 21,397,376 would take you about eleven hours!
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 21397376 cubic inches would be around 23.1 feet tall.
Recreational maths with 21397376
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The information we have on file for 21397376 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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