The Number

21

Twenty-One

In Base 32 Duotrigesimal Is

l32

The numbers with a 32 subscript use Base 32 Duotrigesimal notation.

For more familiar numbers: See Twenty-One in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

18
i32
Eightteen in Base 32 Duotrigesimal
19
j32
Nineteen in Base 32 Duotrigesimal
20
k32
Twenty in Base 32 Duotrigesimal
22
m32
Twenty-Two in Base 32 Duotrigesimal
23
n32
Twenty-Three in Base 32 Duotrigesimal
24
o32
Twenty-Four in Base 32 Duotrigesimal

Scientific Notation

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

2.1e1

Reciprocal

A number multiplied with its reciprocal is one.

0.1goc631goc632

The reciprocal of 21 in Base 32 Duotrigesimal.

Palindrome?

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

The number l32 is a palindrome.

Not A Prime Number

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

Twenty-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 32 Duotrigesimal

A Composite

Composites have more than just these two factors.

Twenty-one is a composite number with 4 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 twenty-one has the following 2 prime factors:

3
332
Three in Base 32 Duotrigesimal
7
732
Seven in Base 32 Duotrigesimal

Prime Factorization

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

3321 · 7321 = l32

Base Conversions

The number twenty-one in 35 different bases