21424720
21,424,720 is an even composite number composed of five prime numbers multiplied together.
What does the number 21424720 look like?
This visualization shows the relationship between its 5 prime factors (large circles) and 80 divisors.
21424720 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 21424720:
24 × 5 × 31 × 53 × 163
(2 × 2 × 2 × 2 × 5 × 31 × 53 × 163)See below for interesting mathematical facts about the number 21424720 from the Numbermatics database.
Names of 21424720
- Cardinal: 21424720 can be written as Twenty-one million, four hundred twenty-four thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.142472 × 107
Factors of 21424720
Divisors of 21424720
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 4 5 8 10 16 20 31 40 53 62 80 106 124 155 163 212 248 265 310 326 424 496 530 620 652 815 848 1060 1240 1304 1630 1643 2120 2480 2608 3260 3286 4240 5053 6520 6572 8215 8639 10106 13040 13144 16430 17278 20212 25265 26288 32860 34556 40424 43195 50530 65720 69112 80848 86390 101060 131440 138224 172780 202120 267809 345560 404240 535618 691120 1071236 1339045 2142472 2678090 4284944 5356180 10712360 21424720
- Sum of all divisors σ(n): 52710912
- Sum of proper divisors (its aliquot sum) s(n): 31286192
- 21424720 is an abundant number, because the sum of its proper divisors (31286192) is greater than itself. Its abundance is 9861472
Bases of 21424720
- Binary: 10100011011101010010100002
- Hexadecimal: 0x146EA50
- Base-36: CR7F4
Squares and roots of 21424720
- 21424720 squared (214247202) is 459018627078400
- 21424720 cubed (214247203) is 9834345559939138048000
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The
square root of 21424720 is 4628.6844783373 -
The
cube root of 21424720 is 277.7399704395
Scales and comparisons
How big is 21424720?- 21,424,720 seconds is equal to 35 weeks, 2 days, 23 hours, 18 minutes, 40 seconds.
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To count from 1 to 21,424,720 would take you about twenty-two 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 21424720 cubic inches would be around 23.1 feet tall.
Recreational maths with 21424720
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The information we have on file for 21424720 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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