The Number

20400

Twenty Thousand Four Hundred

In Base 21 Unovigesimal Is

245921

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

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

Nearby Numbers

Positive, nonzero integers within three units

20397
245621
Twenty Thousand Three Hundred and Ninety-Seven in Base 21 Unovigesimal
20398
245721
Twenty Thousand Three Hundred and Ninety-Eight in Base 21 Unovigesimal
20399
245821
Twenty Thousand Three Hundred and Ninety-Nine in Base 21 Unovigesimal
20401
245a21
Twenty Thousand Four Hundred and One in Base 21 Unovigesimal
20402
245b21
Twenty Thousand Four Hundred and Two in Base 21 Unovigesimal
20403
245c21
Twenty Thousand Four 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.

2.0400e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0009b44df88hjcd21

The reciprocal of 20400 in Base 21 Unovigesimal.

Palindrome?

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

The number 245921 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 four hundred is a composite number with 60 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Twenty thousand four hundred is a composite number with 60 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 four hundred has the following 4 prime factors:

2
221
Two in Base 21 Unovigesimal
3
321
Three in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
17
h21
Seventeen in Base 21 Unovigesimal

Prime Factorization

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

2214 · 3211 · 5212 · h211 = 245921

Base Conversions

The number twenty thousand four hundred in 35 different bases