The Number

21808

Twenty-One Thousand Eight Hundred and Eight

In Base 19 Nonadecimal Is

337f19

The numbers with a 19 subscript use Base 19 Nonadecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21805
337c19
Twenty-One Thousand Eight Hundred and Five in Base 19 Nonadecimal
21806
337d19
Twenty-One Thousand Eight Hundred and Six in Base 19 Nonadecimal
21807
337e19
Twenty-One Thousand Eight Hundred and Seven in Base 19 Nonadecimal
21809
337g19
Twenty-One Thousand Eight Hundred and Nine in Base 19 Nonadecimal
21810
337h19
Twenty-One Thousand Eight Hundred and Ten in Base 19 Nonadecimal
21811
337i19
Twenty-One Thousand Eight Hundred and Eleven in Base 19 Nonadecimal

Scientific Notation

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

2.1808e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0005ia54di7caa9e19

The reciprocal of 21808 in Base 19 Nonadecimal.

Palindrome?

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

The number 337f19 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 eight hundred and eight is a composite number with 20 total factors (including 1 and itself).   See primes in Base 19 Nonadecimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand eight hundred and eight is a composite number with 20 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 eight hundred and eight has the following 3 prime factors:

2
219
Two in Base 19 Nonadecimal
29
1a19
Twenty-Nine in Base 19 Nonadecimal
47
2919
Forty-Seven in Base 19 Nonadecimal

Prime Factorization

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

2194 · 1a191 · 29191 = 337f19

Base Conversions

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