The Number

90

Ninety

In Base 31 Untrigesimal Is

2s31

The numbers with a 31 subscript use Base 31 Untrigesimal notation.

For more familiar numbers: See Ninety in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

87
2p31
Eighty-Seven in Base 31 Untrigesimal
88
2q31
Eighty-Eight in Base 31 Untrigesimal
89
2r31
Eighty-Nine in Base 31 Untrigesimal
91
2t31
Ninety-One in Base 31 Untrigesimal
92
2u31
Ninety-Two in Base 31 Untrigesimal
93
3031
Ninety-Three in Base 31 Untrigesimal

Scientific Notation

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

9e1

Reciprocal

A number multiplied with its reciprocal is one.

0.0al0al0al0ak31

The reciprocal of 90 in Base 31 Untrigesimal.

Palindrome?

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

The number 2s31 is not a palindrome.

Not A Prime Number

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

Ninety is a composite number with 12 total factors (including 1 and itself).   See primes in Base 31 Untrigesimal

A Composite

Composites have more than just these two factors.

Ninety is a composite number with 12 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 ninety has the following 3 prime factors:

2
231
Two in Base 31 Untrigesimal
3
331
Three in Base 31 Untrigesimal
5
531
Five in Base 31 Untrigesimal

Prime Factorization

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

2311 · 3312 · 5311 = 2s31

Base Conversions

The number ninety in 35 different bases