21366990
21,366,990 is an even composite number composed of four prime numbers multiplied together.
21366990 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 21366990:
2 × 37 × 5 × 977
(2 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 5 × 977)See below for interesting mathematical facts about the number 21366990 from the Numbermatics database.
Names of 21366990
- Cardinal: 21366990 can be written as Twenty-one million, three hundred sixty-six thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 2.136699 × 107
Factors of 21366990
Divisors of 21366990
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 243 270 405 486 729 810 977 1215 1458 1954 2187 2430 2931 3645 4374 4885 5862 7290 8793 9770 10935 14655 17586 21870 26379 29310 43965 52758 79137 87930 131895 158274 237411 263790 395685 474822 712233 791370 1187055 1424466 2136699 2374110 3561165 4273398 7122330 10683495 21366990
- Sum of all divisors σ(n): 57741120
- Sum of proper divisors (its aliquot sum) s(n): 36374130
- 21366990 is an abundant number, because the sum of its proper divisors (36374130) is greater than itself. Its abundance is 15007140
Bases of 21366990
- Binary: 10100011000001000110011102
- Hexadecimal: 0x14608CE
- Base-36: CPYVI
Squares and roots of 21366990
- 21366990 squared (213669902) is 456548261660100
- 21366990 cubed (213669903) is 9755062141408740099000
-
The
square root of 21366990 is 4622.4441586675 -
The
cube root of 21366990 is 277.4902845393
Scales and comparisons
How big is 21366990?- 21,366,990 seconds is equal to 35 weeks, 2 days, 7 hours, 16 minutes, 30 seconds.
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To count from 1 to 21,366,990 would take you about six 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 21366990 cubic inches would be around 23.1 feet tall.
Recreational maths with 21366990
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The information we have on file for 21366990 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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