# 309

The numbers with a 9 subscript use Base 9 Nonary notation.

For more familiar numbers: See Twenty-Seven in Base 10 Decimal

## Nearby Numbers

Positive, nonzero integers within three units

24
269
Twenty-Four in Base 9 Nonary
25
279
Twenty-Five in Base 9 Nonary
26
289
Twenty-Six in Base 9 Nonary
28
319
Twenty-Eight in Base 9 Nonary
29
329
Twenty-Nine in Base 9 Nonary
30
339
Thirty in Base 9 Nonary

## 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.

### `0.039`

The reciprocal of 27 in Base 9 Nonary.

## Palindrome?

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

The number 309 is not a palindrome.

## Not A Prime Number

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

Twenty-seven is a composite number with 4 total factors (including 1 and itself).   See primes in Base 9 Nonary

## A Composite

Composites have more than just these two factors.

Twenty-seven is a composite number with 4 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 twenty-seven has the following 1 prime factor:

3
39
Three in Base 9 Nonary

## Prime Factorization

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

## Base Conversions

The number twenty-seven in 35 different bases