21420960
21,420,960 is an even composite number composed of five prime numbers multiplied together.
21420960 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 21420960:
25 × 3 × 5 × 11 × 4057
(2 × 2 × 2 × 2 × 2 × 3 × 5 × 11 × 4057)See below for interesting mathematical facts about the number 21420960 from the Numbermatics database.
Names of 21420960
- Cardinal: 21420960 can be written as Twenty-one million, four hundred twenty thousand, nine hundred sixty.
Scientific notation
- Scientific notation: 2.142096 × 107
Factors of 21420960
Divisors of 21420960
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 32 33 40 44 48 55 60 66 80 88 96 110 120 132 160 165 176 220 240 264 330 352 440 480 528 660 880 1056 1320 1760 2640 4057 5280 8114 12171 16228 20285 24342 32456 40570 44627 48684 60855 64912 81140 89254 97368 121710 129824 133881 162280 178508 194736 223135 243420 267762 324560 357016 389472 446270 486840 535524 649120 669405 714032 892540 973680 1071048 1338810 1428064 1785080 1947360 2142096 2677620 3570160 4284192 5355240 7140320 10710480 21420960
- Sum of all divisors σ(n): 73628352
- Sum of proper divisors (its aliquot sum) s(n): 52207392
- 21420960 is an abundant number, because the sum of its proper divisors (52207392) is greater than itself. Its abundance is 30786432
Bases of 21420960
- Binary: 10100011011011011101000002
- Hexadecimal: 0x146DBA0
- Base-36: CR4IO
Squares and roots of 21420960
- 21420960 squared (214209602) is 458857527321600
- 21420960 cubed (214209603) is 9829168738454900736000
-
The
square root of 21420960 is 4628.2782975963 -
The
cube root of 21420960 is 277.7237218665
Scales and comparisons
How big is 21420960?- 21,420,960 seconds is equal to 35 weeks, 2 days, 22 hours, 16 minutes.
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To count from 1 to 21,420,960 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 21420960 cubic inches would be around 23.1 feet tall.
Recreational maths with 21420960
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The information we have on file for 21420960 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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