The Number

12

Twelve

In Base 21 Unovigesimal Is

c21

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

For more familiar numbers: See Twelve in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

9
921
Nine in Base 21 Unovigesimal
10
a21
Ten in Base 21 Unovigesimal
11
b21
Eleven in Base 21 Unovigesimal
13
d21
Thirteen in Base 21 Unovigesimal
14
e21
Fourteen in Base 21 Unovigesimal
15
f21
Fifteen in Base 21 Unovigesimal

Scientific Notation

Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.

1.2e1

Reciprocal

A number multiplied with its reciprocal is one.

0.1fffffffffffg21

The reciprocal of 12 in Base 21 Unovigesimal.

Palindrome?

A numerical palindrome has the same value when all of its digits are reversed.

The number c21 is a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Twelve is a composite number with 6 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Twelve is a composite number with 6 total factors (including 1 and itself).

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number twelve has the following 2 prime factors:

2
221
Two in Base 21 Unovigesimal
3
321
Three in Base 21 Unovigesimal

Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

2212 · 3211 = c21

Base Conversions

The number twelve in 35 different bases