The Number

181998

One Hundred and Eighty-One Thousand Nine Hundred and Ninety-Eight

In Base 18 Octodecimal Is

1d3d018

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

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

Nearby Numbers

Positive, nonzero integers within three units

181995
1d3cf18
One Hundred and Eighty-One Thousand Nine Hundred and Ninety-Five in Base 18 Octodecimal
181996
1d3cg18
One Hundred and Eighty-One Thousand Nine Hundred and Ninety-Six in Base 18 Octodecimal
181997
1d3ch18
One Hundred and Eighty-One Thousand Nine Hundred and Ninety-Seven in Base 18 Octodecimal
181999
1d3d118
One Hundred and Eighty-One Thousand Nine Hundred and Ninety-Nine in Base 18 Octodecimal
182000
1d3d218
One Hundred and Eighty-Two Thousand in Base 18 Octodecimal
182001
1d3d318
One Hundred and Eighty-Two Thousand and One in Base 18 Octodecimal

Scientific Notation

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

1.81998e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000a6ffg36edce918

The reciprocal of 181998 in Base 18 Octodecimal.

Palindrome?

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

The number 1d3d018 is not a palindrome.

Not A Prime Number

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

One hundred and eighty-one thousand nine hundred and ninety-eight is a composite number with 12 total factors (including 1 and itself).   See primes in Base 18 Octodecimal

A Composite

Composites have more than just these two factors.

One hundred and eighty-one thousand nine hundred and ninety-eight is a composite number with 12 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 one hundred and eighty-one thousand nine hundred and ninety-eight has the following 3 prime factors:

2
218
Two in Base 18 Octodecimal
3
318
Three in Base 18 Octodecimal
10111
1d3d18
Ten Thousand One Hundred and Eleven in Base 18 Octodecimal

Prime Factorization

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

2181 · 3182 · 1d3d181 = 1d3d018

Base Conversions

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