21139188

21,139,188 is an even composite number composed of four prime numbers multiplied together.

What does the number 21139188 look like?

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

21139188 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-six divisors.

Prime factorization of 21139188:

2² × 3 × 7² × 35951

(2 × 2 × 3 × 7 × 7 × 35951)

See below for interesting mathematical facts about the number 21139188 from the Numbermatics database.

Names of 21139188

Cardinal: 21139188 can be written as Twenty-one million, one hundred thirty-nine thousand, one hundred eighty-eight.

Scientific notation

Scientific notation: 2.1139188 × 10⁷

Factors of 21139188

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 35963

Divisors of 21139188

Number of divisors d(n): 36
Complete list of divisors:
1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 294 588 35951 71902 107853 143804 215706 251657 431412 503314 754971 1006628 1509942 1761599 3019884 3523198 5284797 7046396 10569594 21139188
Sum of all divisors σ(n): 57379392
Sum of proper divisors (its aliquot sum) s(n): 36240204
21139188 is an abundant number, because the sum of its proper divisors (36240204) is greater than itself. Its abundance is 15101016

Bases of 21139188

Binary: 1010000101000111011110100₂
Hexadecimal: 0x1428EF4
Base-36: CL33O

Squares and roots of 21139188

21139188 squared (21139188²) is 446865269299344
21139188 cubed (21139188³) is 9446368938389461092672
The square root of 21139188 is 4597.7372695709
The cube root of 21139188 is 276.5006142165

Scales and comparisons

How big is 21139188?

21,139,188 seconds is equal to 34 weeks, 6 days, 15 hours, 59 minutes, 48 seconds.
To count from 1 to 21,139,188 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 21139188 cubic inches would be around 23 feet tall.

Recreational maths with 21139188

21139188 backwards is 88193112
The number of decimal digits it has is: 8
The sum of 21139188's digits is 33
More coming soon!

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The information we have on file for 21139188 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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