21129801
21,129,801 is an odd composite number composed of six prime numbers multiplied together.
21129801 is an odd composite number. It is composed of six distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 21129801:
3 × 7 × 11 × 23 × 41 × 97
See below for interesting mathematical facts about the number 21129801 from the Numbermatics database.
Names of 21129801
- Cardinal: 21129801 can be written as Twenty-one million, one hundred twenty-nine thousand, eight hundred one.
Scientific notation
- Scientific notation: 2.1129801 × 107
Factors of 21129801
Divisors of 21129801
- Number of divisors d(n): 64
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Complete list of divisors:
1 3 7 11 21 23 33 41 69 77 97 123 161 231 253 287 291 451 483 679 759 861 943 1067 1353 1771 2037 2231 2829 3157 3201 3977 5313 6601 6693 7469 9471 10373 11931 15617 19803 22407 24541 27839 31119 43747 46851 72611 73623 83517 91471 131241 171787 217833 274413 306229 515361 640297 918687 1006181 1920891 3018543 7043267 21129801
- Sum of all divisors σ(n): 37933056
- Sum of proper divisors (its aliquot sum) s(n): 16803255
- 21129801 is a deficient number, because the sum of its proper divisors (16803255) is less than itself. Its deficiency is 4326546
Bases of 21129801
- Binary: 10100001001101010010010012
- Hexadecimal: 0x1426A49
- Base-36: CKVUX
Squares and roots of 21129801
- 21129801 squared (211298012) is 446468490299601
- 21129801 cubed (211298013) is 9433790352800999509401
-
The
square root of 21129801 is 4596.7163279889 -
The
cube root of 21129801 is 276.4596808317
Scales and comparisons
How big is 21129801?- 21,129,801 seconds is equal to 34 weeks, 6 days, 13 hours, 23 minutes, 21 seconds.
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To count from 1 to 21,129,801 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 21129801 cubic inches would be around 23 feet tall.
Recreational maths with 21129801
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The information we have on file for 21129801 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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