The Number

21901

Twenty-One Thousand Nine Hundred and One

In Base 21 Unovigesimal Is

27dj21

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

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

Nearby Numbers

Positive, nonzero integers within three units

21898
27dg21
Twenty-One Thousand Eight Hundred and Ninety-Eight in Base 21 Unovigesimal
21899
27dh21
Twenty-One Thousand Eight Hundred and Ninety-Nine in Base 21 Unovigesimal
21900
27di21
Twenty-One Thousand Nine Hundred in Base 21 Unovigesimal
21902
27dk21
Twenty-One Thousand Nine Hundred and Two in Base 21 Unovigesimal
21903
27e021
Twenty-One Thousand Nine Hundred and Three in Base 21 Unovigesimal
21904
27e121
Twenty-One Thousand Nine Hundred and Four in Base 21 Unovigesimal

Scientific Notation

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

2.1901e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0008ia1f758cfkh21

The reciprocal of 21901 in Base 21 Unovigesimal.

Palindrome?

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

The number 27dj21 is not a palindrome.

Not A Prime Number

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

Twenty-one thousand nine hundred and one is a composite number with 6 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand nine hundred and one is a composite number with 6 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-one thousand nine hundred and one has the following 2 prime factors:

11
b21
Eleven in Base 21 Unovigesimal
181
8d21
One Hundred and Eighty-One in Base 21 Unovigesimal

Prime Factorization

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

b212 · 8d211 = 27dj21

Base Conversions

The number twenty-one thousand nine hundred and one in 35 different bases