The Number

990

Nine Hundred and Ninety

In Base 11 Undecimal Is

82011

The numbers with a 11 subscript use Base 11 Undecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

987
81811
Nine Hundred and Eighty-Seven in Base 11 Undecimal
988
81911
Nine Hundred and Eighty-Eight in Base 11 Undecimal
989
81a11
Nine Hundred and Eighty-Nine in Base 11 Undecimal
991
82111
Nine Hundred and Ninety-One in Base 11 Undecimal
992
82211
Nine Hundred and Ninety-Two in Base 11 Undecimal
993
82311
Nine Hundred and Ninety-Three in Base 11 Undecimal

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.

0.00138750138750138811

The reciprocal of 990 in Base 11 Undecimal.

Palindrome?

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

The number 82011 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 11 Undecimal

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
211
Two in Base 11 Undecimal
3
311
Three in Base 11 Undecimal
5
511
Five in Base 11 Undecimal
11
1011
Eleven in Base 11 Undecimal

Prime Factorization

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

2111 · 3112 · 5111 · 10111 = 82011

Base Conversions

The number nine hundred and ninety in 35 different bases