21122790
21,122,790 is an even composite number composed of six prime numbers multiplied together.
21122790 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 21122790:
2 × 3 × 5 × 13 × 41 × 1321
See below for interesting mathematical facts about the number 21122790 from the Numbermatics database.
Names of 21122790
- Cardinal: 21122790 can be written as Twenty-one million, one hundred twenty-two thousand, seven hundred ninety.
Scientific notation
- Scientific notation: 2.112279 × 107
Factors of 21122790
Divisors of 21122790
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 5 6 10 13 15 26 30 39 41 65 78 82 123 130 195 205 246 390 410 533 615 1066 1230 1321 1599 2642 2665 3198 3963 5330 6605 7926 7995 13210 15990 17173 19815 34346 39630 51519 54161 85865 103038 108322 162483 171730 257595 270805 324966 515190 541610 704093 812415 1408186 1624830 2112279 3520465 4224558 7040930 10561395 21122790
- Sum of all divisors σ(n): 55968192
- Sum of proper divisors (its aliquot sum) s(n): 34845402
- 21122790 is an abundant number, because the sum of its proper divisors (34845402) is greater than itself. Its abundance is 13722612
Bases of 21122790
- Binary: 10100001001001110111001102
- Hexadecimal: 0x1424EE6
- Base-36: CKQG6
Squares and roots of 21122790
- 21122790 squared (211227902) is 446172257384100
- 21122790 cubed (211227903) is 9424402896550293639000
-
The
square root of 21122790 is 4595.9536551189 -
The
cube root of 21122790 is 276.4291004327
Scales and comparisons
How big is 21122790?- 21,122,790 seconds is equal to 34 weeks, 6 days, 11 hours, 26 minutes, 30 seconds.
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To count from 1 to 21,122,790 would take you about two 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 21122790 cubic inches would be around 23 feet tall.
Recreational maths with 21122790
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The information we have on file for 21122790 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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