The Number

990

Nine Hundred and Ninety

In Base 28 Octovigesimal Is

17a28

The numbers with a 28 subscript use Base 28 Octovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

987
17728
Nine Hundred and Eighty-Seven in Base 28 Octovigesimal
988
17828
Nine Hundred and Eighty-Eight in Base 28 Octovigesimal
989
17928
Nine Hundred and Eighty-Nine in Base 28 Octovigesimal
991
17b28
Nine Hundred and Ninety-One in Base 28 Octovigesimal
992
17c28
Nine Hundred and Ninety-Two in Base 28 Octovigesimal
993
17d28
Nine Hundred and Ninety-Three in Base 28 Octovigesimal

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.

0.00m4o5ok3njhh28

The reciprocal of 990 in Base 28 Octovigesimal.

Palindrome?

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

The number 17a28 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 28 Octovigesimal

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
228
Two in Base 28 Octovigesimal
3
328
Three in Base 28 Octovigesimal
5
528
Five in Base 28 Octovigesimal
11
b28
Eleven in Base 28 Octovigesimal

Prime Factorization

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

2281 · 3282 · 5281 · b281 = 17a28

Base Conversions

The number nine hundred and ninety in 35 different bases