# 1913

The numbers with a 13 subscript use Base 13 Tridecimal notation.

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

## Nearby Numbers

Positive, nonzero integers within three units

19
1613
Nineteen in Base 13 Tridecimal
20
1713
Twenty in Base 13 Tridecimal
21
1813
Twenty-One in Base 13 Tridecimal
23
1a13
Twenty-Three in Base 13 Tridecimal
24
1b13
Twenty-Four in Base 13 Tridecimal
25
1c13
Twenty-Five in Base 13 Tridecimal

## 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.

### `0.078b2c541a078b3313`

The reciprocal of 22 in Base 13 Tridecimal.

## Palindrome?

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

The number 1913 is not a palindrome.

## Not A Prime Number

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

Twenty-two is a composite number with 4 total factors (including 1 and itself).   See primes in Base 13 Tridecimal

## A Composite

Composites have more than just these two factors.

Twenty-two 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-two has the following 2 prime factors:

2
213
Two in Base 13 Tridecimal
11
b13
Eleven in Base 13 Tridecimal

## 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-two in 35 different bases