21137472

21,137,472 is an even composite number composed of three prime numbers multiplied together.

What does the number 21137472 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 42 divisors.

21137472 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of forty-two divisors.

Prime factorization of 21137472:

2⁶ × 3² × 36697

(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 36697)

See below for interesting mathematical facts about the number 21137472 from the Numbermatics database.

Names of 21137472

Cardinal: 21137472 can be written as Twenty-one million, one hundred thirty-seven thousand, four hundred seventy-two.

Scientific notation

Scientific notation: 2.1137472 × 10⁷

Factors of 21137472

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 9
Sum of prime factors: 36702

Divisors of 21137472

Number of divisors d(n): 42
Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 144 192 288 576 36697 73394 110091 146788 220182 293576 330273 440364 587152 660546 880728 1174304 1321092 1761456 2348608 2642184 3522912 5284368 7045824 10568736 21137472
Sum of all divisors σ(n): 60588398
Sum of proper divisors (its aliquot sum) s(n): 39450926
21137472 is an abundant number, because the sum of its proper divisors (39450926) is greater than itself. Its abundance is 18313454

Bases of 21137472

Binary: 1010000101000100001000000₂
Hexadecimal: 0x1428840
Base-36: CL1S0

Squares and roots of 21137472

21137472 squared (21137472²) is 446792722550784
21137472 cubed (21137472³) is 9444068662720965378048
The square root of 21137472 is 4597.5506522495
The cube root of 21137472 is 276.4931322531

Scales and comparisons

How big is 21137472?

21,137,472 seconds is equal to 34 weeks, 6 days, 15 hours, 31 minutes, 12 seconds.
To count from 1 to 21,137,472 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 21137472 cubic inches would be around 23 feet tall.

Recreational maths with 21137472

21137472 backwards is 27473112
The number of decimal digits it has is: 8
The sum of 21137472's digits is 27
More coming soon!

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The information we have on file for 21137472 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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