12

12 is an even composite number composed of two prime numbers multiplied together.

What does the number 12 look like?

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

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

Prime factorization of 12:

2² × 3

(2 × 2 × 3)

See below for interesting mathematical facts about the number 12 from the Numbermatics database.

Names of 12

Cardinal: 12 can be written as Twelve.

Scientific notation

Scientific notation: 1.2 × 10¹

Factors of 12

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 3
Sum of prime factors: 5

Divisors of 12

Number of divisors d(n): 6
Complete list of divisors:
1 2 3 4 6 12
Sum of all divisors σ(n): 28
Sum of proper divisors (its aliquot sum) s(n): 16
12 is an abundant number, because the sum of its proper divisors (16) is greater than itself. Its abundance is 4

Bases of 12

Binary: 1100₂
Hexadecimal: 0xC
Base-36: C

Squares and roots of 12

12 squared (12²) is 144
12 cubed (12³) is 1728
The square root of 12 is 3.4641016151
The cube root of 12 is 2.2894284853

Scales and comparisons

How big is 12?

A cube with a volume of 12 cubic inches would be around 0.2 feet tall.

Recreational maths with 12

12 backwards is 21
12 is a Harshad number.
The number of decimal digits it has is: 2
The sum of 12's digits is 3
More coming soon!

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The information we have on file for 12 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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