The Number

20800

Twenty Thousand Eight Hundred

In Base 21 Unovigesimal Is

253a21

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

20797
253721
Twenty Thousand Seven Hundred and Ninety-Seven in Base 21 Unovigesimal
20798
253821
Twenty Thousand Seven Hundred and Ninety-Eight in Base 21 Unovigesimal
20799
253921
Twenty Thousand Seven Hundred and Ninety-Nine in Base 21 Unovigesimal
20801
253b21
Twenty Thousand Eight Hundred and One in Base 21 Unovigesimal
20802
253c21
Twenty Thousand Eight Hundred and Two in Base 21 Unovigesimal
20803
253d21
Twenty Thousand Eight Hundred and Three in Base 21 Unovigesimal

Scientific Notation

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

2.0800e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0009777geef3111a21

The reciprocal of 20800 in Base 21 Unovigesimal.

Palindrome?

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

The number 253a21 is not a palindrome.

Not A Prime Number

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

Twenty thousand eight hundred is a composite number with 42 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Twenty thousand eight hundred is a composite number with 42 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 thousand eight hundred has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
13
d21
Thirteen in Base 21 Unovigesimal

Prime Factorization

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

2216 · 5212 · d211 = 253a21

Base Conversions

The number twenty thousand eight hundred in 35 different bases