21137725

21,137,725 is an odd composite number composed of four prime numbers multiplied together.

What does the number 21137725 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 36 divisors.

21137725 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-six divisors.

Prime factorization of 21137725:

5² × 7 × 43 × 53²

(5 × 5 × 7 × 43 × 53 × 53)

See below for interesting mathematical facts about the number 21137725 from the Numbermatics database.

Names of 21137725

Cardinal: 21137725 can be written as Twenty-one million, one hundred thirty-seven thousand, seven hundred twenty-five.

Scientific notation

Scientific notation: 2.1137725 × 10⁷

Factors of 21137725

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 108

Divisors of 21137725

Number of divisors d(n): 36
Complete list of divisors:
1 5 7 25 35 43 53 175 215 265 301 371 1075 1325 1505 1855 2279 2809 7525 9275 11395 14045 15953 19663 56975 70225 79765 98315 120787 398825 491575 603935 845509 3019675 4227545 21137725
Sum of all divisors σ(n): 31241056
Sum of proper divisors (its aliquot sum) s(n): 10103331
21137725 is a deficient number, because the sum of its proper divisors (10103331) is less than itself. Its deficiency is 11034394

Bases of 21137725

Binary: 1010000101000100100111101₂
Hexadecimal: 0x142893D
Base-36: CL1Z1

Squares and roots of 21137725

21137725 squared (21137725²) is 446803418175625
21137725 cubed (21137725³) is 9444407782456362953125
The square root of 21137725 is 4597.5781668179
The cube root of 21137725 is 276.4942353885

Scales and comparisons

How big is 21137725?

21,137,725 seconds is equal to 34 weeks, 6 days, 15 hours, 35 minutes, 25 seconds.
To count from 1 to 21,137,725 would take you about two 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 21137725 cubic inches would be around 23 feet tall.

Recreational maths with 21137725

21137725 backwards is 52773112
The number of decimal digits it has is: 8
The sum of 21137725's digits is 28
More coming soon!

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The information we have on file for 21137725 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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