21420966
21,420,966 is an even composite number composed of six prime numbers multiplied together.
21420966 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 21420966:
2 × 3 × 7 × 29 × 43 × 409
See below for interesting mathematical facts about the number 21420966 from the Numbermatics database.
Names of 21420966
- Cardinal: 21420966 can be written as Twenty-one million, four hundred twenty thousand, nine hundred sixty-six.
Scientific notation
- Scientific notation: 2.1420966 × 107
Factors of 21420966
Divisors of 21420966
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 6 7 14 21 29 42 43 58 86 87 129 174 203 258 301 406 409 602 609 818 903 1218 1227 1247 1806 2454 2494 2863 3741 5726 7482 8589 8729 11861 17178 17458 17587 23722 26187 35174 35583 52374 52761 71166 83027 105522 123109 166054 246218 249081 369327 498162 510023 738654 1020046 1530069 3060138 3570161 7140322 10710483 21420966
- Sum of all divisors σ(n): 51955200
- Sum of proper divisors (its aliquot sum) s(n): 30534234
- 21420966 is an abundant number, because the sum of its proper divisors (30534234) is greater than itself. Its abundance is 9113268
Bases of 21420966
- Binary: 10100011011011011101001102
- Hexadecimal: 0x146DBA6
- Base-36: CR4IU
Squares and roots of 21420966
- 21420966 squared (214209662) is 458857784373156
- 21420966 cubed (214209663) is 9829176997892705988696
-
The
square root of 21420966 is 4628.2789457853 -
The
cube root of 21420966 is 277.7237477967
Scales and comparisons
How big is 21420966?- 21,420,966 seconds is equal to 35 weeks, 2 days, 22 hours, 16 minutes, 6 seconds.
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To count from 1 to 21,420,966 would take you about twenty-one 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 21420966 cubic inches would be around 23.1 feet tall.
Recreational maths with 21420966
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The information we have on file for 21420966 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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