21990520
21,990,520 is an even composite number composed of five prime numbers multiplied together.
21990520 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 21990520:
23 × 5 × 17 × 73 × 443
(2 × 2 × 2 × 5 × 17 × 73 × 443)See below for interesting mathematical facts about the number 21990520 from the Numbermatics database.
Names of 21990520
- Cardinal: 21990520 can be written as Twenty-one million, nine hundred ninety thousand, five hundred twenty.
Scientific notation
- Scientific notation: 2.199052 × 107
Factors of 21990520
Divisors of 21990520
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 4 5 8 10 17 20 34 40 68 73 85 136 146 170 292 340 365 443 584 680 730 886 1241 1460 1772 2215 2482 2920 3544 4430 4964 6205 7531 8860 9928 12410 15062 17720 24820 30124 32339 37655 49640 60248 64678 75310 129356 150620 161695 258712 301240 323390 549763 646780 1099526 1293560 2199052 2748815 4398104 5497630 10995260 21990520
- Sum of all divisors σ(n): 53226720
- Sum of proper divisors (its aliquot sum) s(n): 31236200
- 21990520 is an abundant number, because the sum of its proper divisors (31236200) is greater than itself. Its abundance is 9245680
Bases of 21990520
- Binary: 10100111110001100011110002
- Hexadecimal: 0x14F8C78
- Base-36: D3BZS
Squares and roots of 21990520
- 21990520 squared (219905202) is 483582969870400
- 21990520 cubed (219905203) is 10634240970594428608000
-
The
square root of 21990520 is 4689.4050795383 -
The
cube root of 21990520 is 280.1636798091
Scales and comparisons
How big is 21990520?- 21,990,520 seconds is equal to 36 weeks, 2 days, 12 hours, 28 minutes, 40 seconds.
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To count from 1 to 21,990,520 would take you about two weeks!
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 21990520 cubic inches would be around 23.3 feet tall.
Recreational maths with 21990520
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The information we have on file for 21990520 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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