23

23 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.

What does the number 23 look like?

As a prime, it is not composed of any other numbers and has no internal structure.

23 is a prime number. Like all primes (except two), it is an odd number.

Prime factorization of 23:

23

See below for interesting mathematical facts about the number 23 from the Numbermatics database.

Names of 23

Cardinal: 23 can be written as Twenty-three.

Scientific notation

Scientific notation: 2.3 × 10¹

Factors of 23

Number of distinct prime factors ω(n): 1
Total number of prime factors Ω(n): 1
Sum of prime factors: 23

Divisors of 23

Number of divisors d(n): 2
Complete list of divisors:
1 23
Sum of all divisors σ(n): 24
Sum of proper divisors (its aliquot sum) s(n): 1
23 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 22

Bases of 23

Binary: 10111₂
Hexadecimal: 0x17
Base-36: N

Squares and roots of 23

23 squared (23²) is 529
23 cubed (23³) is 12167
The square root of 23 is 4.7958315233
The cube root of 23 is 2.8438669799

Scales and comparisons

How big is 23?

A cube with a volume of 23 cubic inches would be around 0.2 feet tall.

Recreational maths with 23

23 backwards is 32
The number of decimal digits it has is: 2
The sum of 23's digits is 5
More coming soon!

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The information we have on file for 23 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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