# a018

The numbers with a 18 subscript use Base 18 Octodecimal notation.

For more familiar numbers: See One Hundred and Eighty in Base 10 Decimal

## Nearby Numbers

Positive, nonzero integers within three units

177
9f18
One Hundred and Seventy-Seven in Base 18 Octodecimal
178
9g18
One Hundred and Seventy-Eight in Base 18 Octodecimal
179
9h18
One Hundred and Seventy-Nine in Base 18 Octodecimal
181
a118
One Hundred and Eighty-One in Base 18 Octodecimal
182
a218
One Hundred and Eighty-Two in Base 18 Octodecimal
183
a318
One Hundred and Eighty-Three in Base 18 Octodecimal

## Scientific Notation

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

## Reciprocal

A number multiplied with its reciprocal is one.

### `0.01e73ae73ae73af18`

The reciprocal of 180 in Base 18 Octodecimal.

## Palindrome?

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

The number a018 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 eighty is a composite number with 18 total factors (including 1 and itself).   See primes in Base 18 Octodecimal

## A Composite

Composites have more than just these two factors.

One hundred and eighty is a composite number with 18 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 eighty has the following 3 prime factors:

2
218
Two in Base 18 Octodecimal
3
318
Three in Base 18 Octodecimal
5
518
Five in Base 18 Octodecimal

## Prime Factorization

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

## Base Conversions

The number one hundred and eighty in 35 different bases