21853

21,853 is an odd composite number composed of two prime numbers multiplied together.

What does the number 21853 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

21853 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

Prime factorization of 21853:

13 × 41²

(13 × 41 × 41)

See below for interesting mathematical facts about the number 21853 from the Numbermatics database.

Names of 21853

Cardinal: 21853 can be written as Twenty-one thousand, eight hundred fifty-three.

Scientific notation

Scientific notation: 2.1853 × 10⁴

Factors of 21853

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 3
Sum of prime factors: 54

Divisors of 21853

Number of divisors d(n): 6
Complete list of divisors:
1 13 41 533 1681 21853
Sum of all divisors σ(n): 24122
Sum of proper divisors (its aliquot sum) s(n): 2269
21853 is a deficient number, because the sum of its proper divisors (2269) is less than itself. Its deficiency is 19584

Bases of 21853

Binary: 101010101011101₂
Hexadecimal: 0x555D
Base-36: GV1

Squares and roots of 21853

21853 squared (21853²) is 477553609
21853 cubed (21853³) is 10435979017477
The square root of 21853 is 147.8276022941
The cube root of 21853 is 27.9578447285

Scales and comparisons

How big is 21853?

21,853 seconds is equal to 6 hours, 4 minutes, 13 seconds.
To count from 1 to 21,853 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 21853 cubic inches would be around 2.3 feet tall.

Recreational maths with 21853

21853 backwards is 35812
The number of decimal digits it has is: 5
The sum of 21853's digits is 19
More coming soon!

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The information we have on file for 21853 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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