### The Number

# 30

## Thirty

## In Base 20 Vigesimal Is

# 1a20

The numbers with a 20 subscript use Base 20 Vigesimal notation.

For more familiar numbers: See Thirty in Base 10 Decimal

## Nearby Numbers

*Positive, nonzero integers within three units*

## Scientific Notation

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

`3e1`

## Reciprocal

*A number multiplied with its reciprocal is one.*

`0.0d6d6d6d6d6d6820`

The reciprocal of 30 in Base 20 Vigesimal.

## Palindrome?

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

The number 1a20 is not a palindrome.

## Not A Prime Number

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

Thirty is a composite number with 8 total factors (including 1 and itself). See primes in Base 20 Vigesimal

## A Composite

*Composites have more than just these two factors.*

Thirty is a composite number with 8 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 thirty has the following 3 prime factors:

## Prime Factorization

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

###
```
2201
·
3201
·
5201
= 1a20
```

## Base Conversions

*The number thirty in 35 different bases*