21988928
21,988,928 is an even composite number composed of four prime numbers multiplied together.
21988928 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of eighty-four divisors.
Prime factorization of 21988928:
26 × 132 × 19 × 107
(2 × 2 × 2 × 2 × 2 × 2 × 13 × 13 × 19 × 107)See below for interesting mathematical facts about the number 21988928 from the Numbermatics database.
Names of 21988928
- Cardinal: 21988928 can be written as Twenty-one million, nine hundred eighty-eight thousand, nine hundred twenty-eight.
Scientific notation
- Scientific notation: 2.1988928 × 107
Factors of 21988928
Divisors of 21988928
- Number of divisors d(n): 84
-
Complete list of divisors:
1 2 4 8 13 16 19 26 32 38 52 64 76 104 107 152 169 208 214 247 304 338 416 428 494 608 676 832 856 988 1216 1352 1391 1712 1976 2033 2704 2782 3211 3424 3952 4066 5408 5564 6422 6848 7904 8132 10816 11128 12844 15808 16264 18083 22256 25688 26429 32528 36166 44512 51376 52858 65056 72332 89024 102752 105716 130112 144664 205504 211432 289328 343577 422864 578656 687154 845728 1157312 1374308 1691456 2748616 5497232 10994464 21988928
- Sum of all divisors σ(n): 50200560
- Sum of proper divisors (its aliquot sum) s(n): 28211632
- 21988928 is an abundant number, because the sum of its proper divisors (28211632) is greater than itself. Its abundance is 6222704
Bases of 21988928
- Binary: 10100111110000110010000002
- Hexadecimal: 0x14F8640
- Base-36: D3ARK
Squares and roots of 21988928
- 21988928 squared (219889282) is 483512954589184
- 21988928 cubed (219889283) is 10631931545528836554752
-
The
square root of 21988928 is 4689.2353321197 -
The
cube root of 21988928 is 280.1569188451
Scales and comparisons
How big is 21988928?- 21,988,928 seconds is equal to 36 weeks, 2 days, 12 hours, 2 minutes, 8 seconds.
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To count from 1 to 21,988,928 would take you about two weeks!
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 21988928 cubic inches would be around 23.3 feet tall.
Recreational maths with 21988928
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"Number 21988928 - Facts about the integer". Numbermatics.com. 2024. Web. 3 May 2024.
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Numbermatics. (2024). Number 21988928 - Facts about the integer. Retrieved 3 May 2024, from https://numbermatics.com/n/21988928/
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The information we have on file for 21988928 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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