21139732

21,139,732 is an even composite number composed of three prime numbers multiplied together.

What does the number 21139732 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

21139732 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 21139732:

2² × 131 × 40343

(2 × 2 × 131 × 40343)

See below for interesting mathematical facts about the number 21139732 from the Numbermatics database.

Names of 21139732

Cardinal: 21139732 can be written as Twenty-one million, one hundred thirty-nine thousand, seven hundred thirty-two.

Scientific notation

Scientific notation: 2.1139732 × 10⁷

Factors of 21139732

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 4
Sum of prime factors: 40476

Divisors of 21139732

Number of divisors d(n): 12
Complete list of divisors:
1 2 4 131 262 524 40343 80686 161372 5284933 10569866 21139732
Sum of all divisors σ(n): 37277856
Sum of proper divisors (its aliquot sum) s(n): 16138124
21139732 is a deficient number, because the sum of its proper divisors (16138124) is less than itself. Its deficiency is 5001608

Bases of 21139732

Binary: 1010000101001000100010100₂
Hexadecimal: 0x1429114
Base-36: CL3IS

Squares and roots of 21139732

21139732 squared (21139732²) is 446888269031824
21139732 cubed (21139732³) is 9447098241276658831168
The square root of 21139732 is 4597.7964287255
The cube root of 21139732 is 276.5029860363

Scales and comparisons

How big is 21139732?

21,139,732 seconds is equal to 34 weeks, 6 days, 16 hours, 8 minutes, 52 seconds.
To count from 1 to 21,139,732 would take you about three 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 21139732 cubic inches would be around 23 feet tall.

Recreational maths with 21139732

21139732 backwards is 23793112
The number of decimal digits it has is: 8
The sum of 21139732's digits is 28
More coming soon!

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The information we have on file for 21139732 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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