The Number

18009

Eightteen Thousand and Nine

In Base 18 Octodecimal Is

31a918

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

For more familiar numbers: See Eightteen Thousand and Nine in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

18006
31a618
Eightteen Thousand and Six in Base 18 Octodecimal
18007
31a718
Eightteen Thousand and Seven in Base 18 Octodecimal
18008
31a818
Eightteen Thousand and Eight in Base 18 Octodecimal
18010
31aa18
Eightteen Thousand and Ten in Base 18 Octodecimal
18011
31ab18
Eightteen Thousand and Eleven in Base 18 Octodecimal
18012
31ac18
Eightteen Thousand 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.

1.8009e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0005egb416534dhb18

The reciprocal of 18009 in Base 18 Octodecimal.

Palindrome?

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

The number 31a918 is not a palindrome.

Not A Prime Number

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

Eightteen thousand and nine is a composite number with 16 total factors (including 1 and itself).   See primes in Base 18 Octodecimal

A Composite

Composites have more than just these two factors.

Eightteen thousand and nine is a composite number with 16 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 eightteen thousand and nine has the following 3 prime factors:

3
318
Three in Base 18 Octodecimal
23
1518
Twenty-Three in Base 18 Octodecimal
29
1b18
Twenty-Nine in Base 18 Octodecimal

Prime Factorization

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

3183 · 15181 · 1b181 = 31a918

Base Conversions

The number eightteen thousand and nine in 35 different bases