The Number

21908

Twenty-One Thousand Nine Hundred and Eight

In Base 4 Quaternary Is

111121104

The numbers with a 4 subscript use Base 4 Quaternary notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21905
111121014
Twenty-One Thousand Nine Hundred and Five in Base 4 Quaternary
21906
111121024
Twenty-One Thousand Nine Hundred and Six in Base 4 Quaternary
21907
111121034
Twenty-One Thousand Nine Hundred and Seven in Base 4 Quaternary
21909
111121114
Twenty-One Thousand Nine Hundred and Nine in Base 4 Quaternary
21910
111121124
Twenty-One Thousand Nine Hundred and Ten in Base 4 Quaternary
21911
111121134
Twenty-One Thousand Nine Hundred and Eleven in Base 4 Quaternary

Scientific Notation

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

2.1908e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000000233313031213100002303133014

The reciprocal of 21908 in Base 4 Quaternary.

Palindrome?

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

The number 111121104 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 eight is a composite number with 6 total factors (including 1 and itself).   See primes in Base 4 Quaternary

A Composite

Composites have more than just these two factors.

Twenty-one thousand nine hundred and eight 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 eight has the following 2 prime factors:

2
24
Two in Base 4 Quaternary
5477
11112114
Five Thousand Four Hundred and Seventy-Seven in Base 4 Quaternary

Prime Factorization

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

242 · 111121141 = 111121104

Base Conversions

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