21472

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

What does the number 21472 look like?

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

21472 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 21472:

2⁵ × 11 × 61

(2 × 2 × 2 × 2 × 2 × 11 × 61)

See below for interesting mathematical facts about the number 21472 from the Numbermatics database.

Names of 21472

Cardinal: 21472 can be written as Twenty-one thousand, four hundred seventy-two.

Scientific notation

Scientific notation: 2.1472 × 10⁴

Factors of 21472

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 7
Sum of prime factors: 74

Divisors of 21472

Number of divisors d(n): 24
Complete list of divisors:
1 2 4 8 11 16 22 32 44 61 88 122 176 244 352 488 671 976 1342 1952 2684 5368 10736 21472
Sum of all divisors σ(n): 46872
Sum of proper divisors (its aliquot sum) s(n): 25400
21472 is an abundant number, because the sum of its proper divisors (25400) is greater than itself. Its abundance is 3928

Bases of 21472

Binary: 101001111100000₂
Hexadecimal: 0x53E0
Base-36: GKG

Squares and roots of 21472

21472 squared (21472²) is 461046784
21472 cubed (21472³) is 9899596546048
The square root of 21472 is 146.5332726721
The cube root of 21472 is 27.7944125547

Scales and comparisons

How big is 21472?

21,472 seconds is equal to 5 hours, 57 minutes, 52 seconds.
To count from 1 to 21,472 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 21472 cubic inches would be around 2.3 feet tall.

Recreational maths with 21472

21472 backwards is 27412
21472 is a Harshad number.
The number of decimal digits it has is: 5
The sum of 21472's digits is 16
More coming soon!

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The information we have on file for 21472 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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