21235872

21,235,872 is an even composite number composed of four prime numbers multiplied together.

What does the number 21235872 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 48 divisors.

21235872 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 21235872:

2⁵ × 3 × 7 × 31601

(2 × 2 × 2 × 2 × 2 × 3 × 7 × 31601)

See below for interesting mathematical facts about the number 21235872 from the Numbermatics database.

Names of 21235872

Cardinal: 21235872 can be written as Twenty-one million, two hundred thirty-five thousand, eight hundred seventy-two.

Scientific notation

Scientific notation: 2.1235872 × 10⁷

Factors of 21235872

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 8
Sum of prime factors: 31613

Divisors of 21235872

Number of divisors d(n): 48
Complete list of divisors:
1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 336 672 31601 63202 94803 126404 189606 221207 252808 379212 442414 505616 663621 758424 884828 1011232 1327242 1516848 1769656 2654484 3033696 3539312 5308968 7078624 10617936 21235872
Sum of all divisors σ(n): 63709632
Sum of proper divisors (its aliquot sum) s(n): 42473760
21235872 is an abundant number, because the sum of its proper divisors (42473760) is greater than itself. Its abundance is 21237888

Bases of 21235872

Binary: 1010001000000100010100000₂
Hexadecimal: 0x14408A0
Base-36: CN5PC

Squares and roots of 21235872

21235872 squared (21235872²) is 450962259600384
21235872 cubed (21235872³) is 9576576821704525774848
The square root of 21235872 is 4608.2395771053
The cube root of 21235872 is 276.9215154707

Scales and comparisons

How big is 21235872?

21,235,872 seconds is equal to 35 weeks, 18 hours, 51 minutes, 12 seconds.
To count from 1 to 21,235,872 would take you about four 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 21235872 cubic inches would be around 23.1 feet tall.

Recreational maths with 21235872

21235872 backwards is 27853212
The number of decimal digits it has is: 8
The sum of 21235872's digits is 30
More coming soon!

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The information we have on file for 21235872 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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