The Number

158

One Hundred and Fifty-Eight

In Base 21 Unovigesimal Is

7b21

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

For more familiar numbers: See One Hundred and Fifty-Eight in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

155
7821
One Hundred and Fifty-Five in Base 21 Unovigesimal
156
7921
One Hundred and Fifty-Six in Base 21 Unovigesimal
157
7a21
One Hundred and Fifty-Seven in Base 21 Unovigesimal
159
7c21
One Hundred and Fifty-Nine in Base 21 Unovigesimal
160
7d21
One Hundred and Sixty in Base 21 Unovigesimal
161
7e21
One Hundred and Sixty-One in Base 21 Unovigesimal

Scientific Notation

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

1.58e2

Reciprocal

A number multiplied with its reciprocal is one.

0.02gcifbbh8d8ij21

The reciprocal of 158 in Base 21 Unovigesimal.

Palindrome?

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

The number 7b21 is not a palindrome.

Not A Prime Number

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

One hundred and fifty-eight is a composite number with 4 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

One hundred and fifty-eight 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 one hundred and fifty-eight has the following 2 prime factors:

2
221
Two in Base 21 Unovigesimal
79
3g21
Seventy-Nine in Base 21 Unovigesimal

Prime Factorization

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

2211 · 3g211 = 7b21

Base Conversions

The number one hundred and fifty-eight in 35 different bases