21896

21,896 is an even composite number composed of four prime numbers multiplied together.

What does the number 21896 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 32 divisors.

21896 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 21896:

2³ × 7 × 17 × 23

(2 × 2 × 2 × 7 × 17 × 23)

See below for interesting mathematical facts about the number 21896 from the Numbermatics database.

Names of 21896

Cardinal: 21896 can be written as Twenty-one thousand, eight hundred ninety-six.

Scientific notation

Scientific notation: 2.1896 × 10⁴

Factors of 21896

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 49

Divisors of 21896

Number of divisors d(n): 32
Complete list of divisors:
1 2 4 7 8 14 17 23 28 34 46 56 68 92 119 136 161 184 238 322 391 476 644 782 952 1288 1564 2737 3128 5474 10948 21896
Sum of all divisors σ(n): 51840
Sum of proper divisors (its aliquot sum) s(n): 29944
21896 is an abundant number, because the sum of its proper divisors (29944) is greater than itself. Its abundance is 8048

Bases of 21896

Binary: 101010110001000₂
Hexadecimal: 0x5588
Base-36: GW8

Squares and roots of 21896

21896 squared (21896²) is 479434816
21896 cubed (21896³) is 10497704731136
The square root of 21896 is 147.9729705047
The cube root of 21896 is 27.9761702013

Scales and comparisons

How big is 21896?

21,896 seconds is equal to 6 hours, 4 minutes, 56 seconds.
To count from 1 to 21,896 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 21896 cubic inches would be around 2.3 feet tall.

Recreational maths with 21896

21896 backwards is 69812
The number of decimal digits it has is: 5
The sum of 21896's digits is 26
More coming soon!

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The information we have on file for 21896 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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