The Number

21109

Twenty-One Thousand One Hundred and Nine

In Base 18 Octodecimal Is

3b2d18

The numbers with a 18 subscript use Base 18 Octodecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21106
3b2a18
Twenty-One Thousand One Hundred and Six in Base 18 Octodecimal
21107
3b2b18
Twenty-One Thousand One Hundred and Seven in Base 18 Octodecimal
21108
3b2c18
Twenty-One Thousand One Hundred and Eight in Base 18 Octodecimal
21110
3b2e18
Twenty-One Thousand One Hundred and Ten in Base 18 Octodecimal
21111
3b2f18
Twenty-One Thousand One Hundred and Eleven in Base 18 Octodecimal
21112
3b2g18
Twenty-One Thousand One Hundred and Twelve in Base 18 Octodecimal

Scientific Notation

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

2.1109e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0004h94e616dg8g2818

The reciprocal of 21109 in Base 18 Octodecimal.

Palindrome?

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

The number 3b2d18 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 nine is a composite number with 8 total factors (including 1 and itself).   See primes in Base 18 Octodecimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand one hundred and nine is a composite number with 8 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 nine has the following 3 prime factors:

11
b18
Eleven in Base 18 Octodecimal
19
1118
Nineteen in Base 18 Octodecimal
101
5b18
One Hundred and One in Base 18 Octodecimal

Prime Factorization

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

b181 · 11181 · 5b181 = 3b2d18

Base Conversions

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