21792

21,792 is an even composite number composed of three prime numbers multiplied together.

What does the number 21792 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 24 divisors.

21792 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 21792:

2⁵ × 3 × 227

(2 × 2 × 2 × 2 × 2 × 3 × 227)

See below for interesting mathematical facts about the number 21792 from the Numbermatics database.

Names of 21792

Cardinal: 21792 can be written as Twenty-one thousand, seven hundred ninety-two.

Scientific notation

Scientific notation: 2.1792 × 10⁴

Factors of 21792

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 7
Sum of prime factors: 232

Divisors of 21792

Number of divisors d(n): 24
Complete list of divisors:
1 2 3 4 6 8 12 16 24 32 48 96 227 454 681 908 1362 1816 2724 3632 5448 7264 10896 21792
Sum of all divisors σ(n): 57456
Sum of proper divisors (its aliquot sum) s(n): 35664
21792 is an abundant number, because the sum of its proper divisors (35664) is greater than itself. Its abundance is 13872

Bases of 21792

Binary: 101010100100000₂
Hexadecimal: 0x5520
Base-36: GTC

Squares and roots of 21792

21792 squared (21792²) is 474891264
21792 cubed (21792³) is 10348830425088
The square root of 21792 is 147.6211366979
The cube root of 21792 is 27.9318068415

Scales and comparisons

How big is 21792?

21,792 seconds is equal to 6 hours, 3 minutes, 12 seconds.
To count from 1 to 21,792 would take you about six 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 21792 cubic inches would be around 2.3 feet tall.

Recreational maths with 21792

21792 backwards is 29712
The number of decimal digits it has is: 5
The sum of 21792's digits is 21
More coming soon!

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The information we have on file for 21792 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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