21238472

21,238,472 is an even composite number composed of three prime numbers multiplied together.

What does the number 21238472 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 16 divisors.

21238472 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 21238472:

2³ × 31 × 85639

(2 × 2 × 2 × 31 × 85639)

See below for interesting mathematical facts about the number 21238472 from the Numbermatics database.

Names of 21238472

Cardinal: 21238472 can be written as Twenty-one million, two hundred thirty-eight thousand, four hundred seventy-two.

Scientific notation

Scientific notation: 2.1238472 × 10⁷

Factors of 21238472

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 5
Sum of prime factors: 85672

Divisors of 21238472

Number of divisors d(n): 16
Complete list of divisors:
1 2 4 8 31 62 124 248 85639 171278 342556 685112 2654809 5309618 10619236 21238472
Sum of all divisors σ(n): 41107200
Sum of proper divisors (its aliquot sum) s(n): 19868728
21238472 is a deficient number, because the sum of its proper divisors (19868728) is less than itself. Its deficiency is 1369744

Bases of 21238472

Binary: 1010001000001001011001000₂
Hexadecimal: 0x14412C8
Base-36: CN7PK

Squares and roots of 21238472

21238472 squared (21238472²) is 451072692894784
21238472 cubed (21238472³) is 9580094758010468930048
The square root of 21238472 is 4608.5216718595
The cube root of 21238472 is 276.9328165773

Scales and comparisons

How big is 21238472?

21,238,472 seconds is equal to 35 weeks, 19 hours, 34 minutes, 32 seconds.
To count from 1 to 21,238,472 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 21238472 cubic inches would be around 23.1 feet tall.

Recreational maths with 21238472

21238472 backwards is 27483212
The number of decimal digits it has is: 8
The sum of 21238472's digits is 29
More coming soon!

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The information we have on file for 21238472 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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