# a0013

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

For more familiar numbers: See One Thousand Six Hundred and Ninety in Base 10 Decimal

## Nearby Numbers

Positive, nonzero integers within three units

1687
9ca13
One Thousand Six Hundred and Eighty-Seven in Base 13 Tridecimal
1688
9cb13
One Thousand Six Hundred and Eighty-Eight in Base 13 Tridecimal
1689
9cc13
One Thousand Six Hundred and Eighty-Nine in Base 13 Tridecimal
1691
a0113
One Thousand Six Hundred and Ninety-One in Base 13 Tridecimal
1692
a0213
One Thousand Six Hundred and Ninety-Two in Base 13 Tridecimal
1693
a0313
One Thousand Six Hundred and Ninety-Three 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.

### `0.0013b913b913b913c13`

The reciprocal of 1690 in Base 13 Tridecimal.

## Palindrome?

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

The number a0013 is not a palindrome.

## Not A Prime Number

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

One thousand six hundred and ninety is a composite number with 12 total factors (including 1 and itself).   See primes in Base 13 Tridecimal

## A Composite

Composites have more than just these two factors.

One thousand six hundred and ninety is a composite number with 12 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 thousand six hundred and ninety has the following 3 prime factors:

2
213
Two in Base 13 Tridecimal
5
513
Five in Base 13 Tridecimal
13
1013
Thirteen 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 one thousand six hundred and ninety in 35 different bases