21208960
21,208,960 is an even composite number composed of four prime numbers multiplied together.
What does the number 21208960 look like?
This visualization shows the relationship between its 4 prime factors (large circles) and 64 divisors.
21208960 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 21208960:
27 × 5 × 31 × 1069
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 31 × 1069)See below for interesting mathematical facts about the number 21208960 from the Numbermatics database.
Names of 21208960
- Cardinal: 21208960 can be written as Twenty-one million, two hundred eight thousand, nine hundred sixty.
Scientific notation
- Scientific notation: 2.120896 × 107
Factors of 21208960
Divisors of 21208960
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 4 5 8 10 16 20 31 32 40 62 64 80 124 128 155 160 248 310 320 496 620 640 992 1069 1240 1984 2138 2480 3968 4276 4960 5345 8552 9920 10690 17104 19840 21380 33139 34208 42760 66278 68416 85520 132556 136832 165695 171040 265112 331390 342080 530224 662780 684160 1060448 1325560 2120896 2651120 4241792 5302240 10604480 21208960
- Sum of all divisors σ(n): 52387200
- Sum of proper divisors (its aliquot sum) s(n): 31178240
- 21208960 is an abundant number, because the sum of its proper divisors (31178240) is greater than itself. Its abundance is 9969280
Bases of 21208960
- Binary: 10100001110011111100000002
- Hexadecimal: 0x1439F80
- Base-36: CMKXS
Squares and roots of 21208960
- 21208960 squared (212089602) is 449819984281600
- 21208960 cubed (212089603) is 9540214053829083136000
-
The
square root of 21208960 is 4605.3186643273 -
The
cube root of 21208960 is 276.8044861001
Scales and comparisons
How big is 21208960?- 21,208,960 seconds is equal to 35 weeks, 11 hours, 22 minutes, 40 seconds.
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To count from 1 to 21,208,960 would take you about four 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 21208960 cubic inches would be around 23.1 feet tall.
Recreational maths with 21208960
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The information we have on file for 21208960 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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