The Number

20809

Twenty Thousand Eight Hundred and Nine

In Base 28 Octovigesimal Is

qf528

The numbers with a 28 subscript use Base 28 Octovigesimal 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
qf228
Twenty Thousand Eight Hundred and Six in Base 28 Octovigesimal
20807
qf328
Twenty Thousand Eight Hundred and Seven in Base 28 Octovigesimal
20808
qf428
Twenty Thousand Eight Hundred and Eight in Base 28 Octovigesimal
20810
qf628
Twenty Thousand Eight Hundred and Ten in Base 28 Octovigesimal
20811
qf728
Twenty Thousand Eight Hundred and Eleven in Base 28 Octovigesimal
20812
qf828
Twenty Thousand Eight Hundred and Twelve in Base 28 Octovigesimal

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.

0.0011f1lplna8q928

The reciprocal of 20809 in Base 28 Octovigesimal.

Palindrome?

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

The number qf528 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 28 Octovigesimal

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
qf528
Twenty Thousand Eight Hundred and Nine in Base 28 Octovigesimal

Prime Factorization

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

qf5281 = qf528

Base Conversions

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