20724

20,724 is an even composite number composed of four prime numbers multiplied together.

What does the number 20724 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

20724 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 20724:

2² × 3 × 11 × 157

(2 × 2 × 3 × 11 × 157)

See below for interesting mathematical facts about the number 20724 from the Numbermatics database.

Names of 20724

Cardinal: 20724 can be written as Twenty thousand, seven hundred twenty-four.

Scientific notation

Scientific notation: 2.0724 × 10⁴

Factors of 20724

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 173

Divisors of 20724

Number of divisors d(n): 24
Complete list of divisors:
1 2 3 4 6 11 12 22 33 44 66 132 157 314 471 628 942 1727 1884 3454 5181 6908 10362 20724
Sum of all divisors σ(n): 53088
Sum of proper divisors (its aliquot sum) s(n): 32364
20724 is an abundant number, because the sum of its proper divisors (32364) is greater than itself. Its abundance is 11640

Bases of 20724

Binary: 101000011110100₂
Hexadecimal: 0x50F4
Base-36: FZO

Squares and roots of 20724

20724 squared (20724²) is 429484176
20724 cubed (20724³) is 8900630063424
The square root of 20724 is 143.9583273035
The cube root of 20724 is 27.4678411957

Scales and comparisons

How big is 20724?

20,724 seconds is equal to 5 hours, 45 minutes, 24 seconds.
To count from 1 to 20,724 would take you about five 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 20724 cubic inches would be around 2.3 feet tall.

Recreational maths with 20724

20724 backwards is 42702
The number of decimal digits it has is: 5
The sum of 20724's digits is 15
More coming soon!

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The information we have on file for 20724 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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