21129136

21,129,136 is an even composite number composed of three prime numbers multiplied together.

What does the number 21129136 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 20 divisors.

21129136 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty divisors.

Prime factorization of 21129136:

2⁴ × 7 × 188653

(2 × 2 × 2 × 2 × 7 × 188653)

See below for interesting mathematical facts about the number 21129136 from the Numbermatics database.

Names of 21129136

Cardinal: 21129136 can be written as Twenty-one million, one hundred twenty-nine thousand, one hundred thirty-six.

Scientific notation

Scientific notation: 2.1129136 × 10⁷

Factors of 21129136

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 6
Sum of prime factors: 188662

Divisors of 21129136

Number of divisors d(n): 20
Complete list of divisors:
1 2 4 7 8 14 16 28 56 112 188653 377306 754612 1320571 1509224 2641142 3018448 5282284 10564568 21129136
Sum of all divisors σ(n): 46786192
Sum of proper divisors (its aliquot sum) s(n): 25657056
21129136 is an abundant number, because the sum of its proper divisors (25657056) is greater than itself. Its abundance is 4527920

Bases of 21129136

Binary: 1010000100110011110110000₂
Hexadecimal: 0x14267B0
Base-36: CKVCG

Squares and roots of 21129136

21129136 squared (21129136²) is 446440388106496
21129136 cubed (21129136³) is 9432899676194936467456
The square root of 21129136 is 4596.6439931759
The cube root of 21129136 is 276.4567805423

Scales and comparisons

How big is 21129136?

21,129,136 seconds is equal to 34 weeks, 6 days, 13 hours, 12 minutes, 16 seconds.
To count from 1 to 21,129,136 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 21129136 cubic inches would be around 23 feet tall.

Recreational maths with 21129136

21129136 backwards is 63192112
The number of decimal digits it has is: 8
The sum of 21129136's digits is 25
More coming soon!

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The information we have on file for 21129136 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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