21274890
21,274,890 is an even composite number composed of six prime numbers multiplied together.
21274890 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 21274890:
2 × 3 × 5 × 7 × 13 × 7793
See below for interesting mathematical facts about the number 21274890 from the Numbermatics database.
Names of 21274890
- Cardinal: 21274890 can be written as Twenty-one million, two hundred seventy-four thousand, eight hundred ninety.
Scientific notation
- Scientific notation: 2.127489 × 107
Factors of 21274890
Divisors of 21274890
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 3 5 6 7 10 13 14 15 21 26 30 35 39 42 65 70 78 91 105 130 182 195 210 273 390 455 546 910 1365 2730 7793 15586 23379 38965 46758 54551 77930 101309 109102 116895 163653 202618 233790 272755 303927 327306 506545 545510 607854 709163 818265 1013090 1418326 1519635 1636530 2127489 3039270 3545815 4254978 7091630 10637445 21274890
- Sum of all divisors σ(n): 62850816
- Sum of proper divisors (its aliquot sum) s(n): 41575926
- 21274890 is an abundant number, because the sum of its proper divisors (41575926) is greater than itself. Its abundance is 20301036
Bases of 21274890
- Binary: 10100010010100001000010102
- Hexadecimal: 0x144A10A
- Base-36: CNZT6
Squares and roots of 21274890
- 21274890 squared (212748902) is 452620944512100
- 21274890 cubed (212748903) is 9629460806191031169000
-
The
square root of 21274890 is 4612.4711381211 -
The
cube root of 21274890 is 277.0910134617
Scales and comparisons
How big is 21274890?- 21,274,890 seconds is equal to 35 weeks, 1 day, 5 hours, 41 minutes, 30 seconds.
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To count from 1 to 21,274,890 would take you about five 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 21274890 cubic inches would be around 23.1 feet tall.
Recreational maths with 21274890
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The information we have on file for 21274890 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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