# 4b19

The numbers with a 19 subscript use Base 19 Nonadecimal notation.

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

## Nearby Numbers

Positive, nonzero integers within three units

84
4819
85
4919
86
4a19
88
4c19
89
4d19
90
4e19

## 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.

### `0.042fhh4f58diad19`

The reciprocal of 87 in Base 19 Nonadecimal.

## Palindrome?

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

The number 4b19 is not a palindrome.

## Not A Prime Number

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

Eighty-seven is a composite number with 4 total factors (including 1 and itself).   See primes in Base 19 Nonadecimal

## A Composite

Composites have more than just these two factors.

Eighty-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 eighty-seven has the following 2 prime factors:

3
319
29
1a19

## Prime Factorization

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

## Base Conversions

The number eighty-seven in 35 different bases