The Number

20809

Twenty Thousand Eight Hundred and Nine

In Base 13 Tridecimal Is

961913

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

For more familiar numbers: See Twenty Thousand Eight Hundred and Nine in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

20806
961613
Twenty Thousand Eight Hundred and Six in Base 13 Tridecimal
20807
961713
Twenty Thousand Eight Hundred and Seven in Base 13 Tridecimal
20808
961813
Twenty Thousand Eight Hundred and Eight in Base 13 Tridecimal
20810
961a13
Twenty Thousand Eight Hundred and Ten in Base 13 Tridecimal
20811
961b13
Twenty Thousand Eight Hundred and Eleven in Base 13 Tridecimal
20812
961c13
Twenty Thousand Eight Hundred and Twelve in Base 13 Tridecimal

Scientific Notation

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

2.0809e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00014ac5b27118cba913

The reciprocal of 20809 in Base 13 Tridecimal.

Palindrome?

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

The number 961913 is not a palindrome.

A Prime Number

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

Twenty thousand eight hundred and nine is the 2344th prime number.   See primes in Base 13 Tridecimal

Not A Composite

Composites have more than just these two factors.

Twenty Thousand Eight Hundred and Nine is not a composite number because it has exactly two factors: One and Twenty Thousand Eight Hundred and Nine

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number twenty thousand eight hundred and nine has the following 1 prime factor:

20809
961913
Twenty Thousand Eight Hundred and Nine in Base 13 Tridecimal

Prime Factorization

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

9619131 = 961913

Base Conversions

The number twenty thousand eight hundred and nine in 35 different bases