21386732

21,386,732 is an even composite number composed of three prime numbers multiplied together.

What does the number 21386732 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 18 divisors.

21386732 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eighteen divisors.

Prime factorization of 21386732:

2² × 107² × 467

(2 × 2 × 107 × 107 × 467)

See below for interesting mathematical facts about the number 21386732 from the Numbermatics database.

Names of 21386732

Cardinal: 21386732 can be written as Twenty-one million, three hundred eighty-six thousand, seven hundred thirty-two.

Scientific notation

Scientific notation: 2.1386732 × 10⁷

Factors of 21386732

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 5
Sum of prime factors: 576

Divisors of 21386732

Number of divisors d(n): 18
Complete list of divisors:
1 2 4 107 214 428 467 934 1868 11449 22898 45796 49969 99938 199876 5346683 10693366 21386732
Sum of all divisors σ(n): 37860732
Sum of proper divisors (its aliquot sum) s(n): 16474000
21386732 is a deficient number, because the sum of its proper divisors (16474000) is less than itself. Its deficiency is 4912732

Bases of 21386732

Binary: 1010001100101010111101100₂
Hexadecimal: 0x14655EC
Base-36: CQE3W

Squares and roots of 21386732

21386732 squared (21386732²) is 457392305639824
21386732 cubed (21386732³) is 9782126659581004415168
The square root of 21386732 is 4624.5791159845
The cube root of 21386732 is 277.5757204831

Scales and comparisons

How big is 21386732?

21,386,732 seconds is equal to 35 weeks, 2 days, 12 hours, 45 minutes, 32 seconds.
To count from 1 to 21,386,732 would take you about seven hours!

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 21386732 cubic inches would be around 23.1 feet tall.

Recreational maths with 21386732

21386732 backwards is 23768312
The number of decimal digits it has is: 8
The sum of 21386732's digits is 32
More coming soon!

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The information we have on file for 21386732 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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