The Number

21105

Twenty-One Thousand One Hundred and Five

In Base 19 Nonadecimal Is

318f19

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

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

Nearby Numbers

Positive, nonzero integers within three units

21102
318c19
Twenty-One Thousand One Hundred and Two in Base 19 Nonadecimal
21103
318d19
Twenty-One Thousand One Hundred and Three in Base 19 Nonadecimal
21104
318e19
Twenty-One Thousand One Hundred and Four in Base 19 Nonadecimal
21106
318g19
Twenty-One Thousand One Hundred and Six in Base 19 Nonadecimal
21107
318h19
Twenty-One Thousand One Hundred and Seven in Base 19 Nonadecimal
21108
318i19
Twenty-One Thousand One Hundred and Eight in Base 19 Nonadecimal

Scientific Notation

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

2.1105e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0006362a9cic1d6a19

The reciprocal of 21105 in Base 19 Nonadecimal.

Palindrome?

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

The number 318f19 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 one hundred and five is a composite number with 24 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 one hundred and five is a composite number with 24 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 one hundred and five has the following 4 prime factors:

3
319
Three in Base 19 Nonadecimal
5
519
Five in Base 19 Nonadecimal
7
719
Seven in Base 19 Nonadecimal
67
3a19
Sixty-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

3192 · 5191 · 7191 · 3a191 = 318f19

Base Conversions

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