The Number

990

Nine Hundred and Ninety

In Base 31 Untrigesimal Is

10t31

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

For more familiar numbers: See Nine Hundred and Ninety in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

987
10q31
Nine Hundred and Eighty-Seven in Base 31 Untrigesimal
988
10r31
Nine Hundred and Eighty-Eight in Base 31 Untrigesimal
989
10s31
Nine Hundred and Eighty-Nine in Base 31 Untrigesimal
991
10u31
Nine Hundred and Ninety-One in Base 31 Untrigesimal
992
11031
Nine Hundred and Ninety-Two in Base 31 Untrigesimal
993
11131
Nine Hundred and 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.

9.90e2

Reciprocal

A number multiplied with its reciprocal is one.

0.00u2qab9d5klk31

The reciprocal of 990 in Base 31 Untrigesimal.

Palindrome?

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

The number 10t31 is not a palindrome.

Not A Prime Number

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

Nine hundred and ninety is a composite number with 24 total factors (including 1 and itself).   See primes in Base 31 Untrigesimal

A Composite

Composites have more than just these two factors.

Nine hundred and ninety is a composite number with 24 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 nine hundred and ninety has the following 4 prime factors:

2
231
Two in Base 31 Untrigesimal
3
331
Three in Base 31 Untrigesimal
5
531
Five in Base 31 Untrigesimal
11
b31
Eleven 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 · b311 = 10t31

Base Conversions

The number nine hundred and ninety in 35 different bases