The Number

128081

One Hundred and Twenty-Eight Thousand and Eighty-One

In Base 18 Octodecimal Is

13h5b18

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

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

Nearby Numbers

Positive, nonzero integers within three units

128078
13h5818
One Hundred and Twenty-Eight Thousand and Seventy-Eight in Base 18 Octodecimal
128079
13h5918
One Hundred and Twenty-Eight Thousand and Seventy-Nine in Base 18 Octodecimal
128080
13h5a18
One Hundred and Twenty-Eight Thousand and Eighty in Base 18 Octodecimal
128082
13h5c18
One Hundred and Twenty-Eight Thousand and Eighty-Two in Base 18 Octodecimal
128083
13h5d18
One Hundred and Twenty-Eight Thousand and Eighty-Three in Base 18 Octodecimal
128084
13h5e18
One Hundred and Twenty-Eight Thousand and Eighty-Four in Base 18 Octodecimal

Scientific Notation

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

1.28081e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000ed9ghg9830g9d18

The reciprocal of 128081 in Base 18 Octodecimal.

Palindrome?

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

The number 13h5b18 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 twenty-eight thousand and eighty-one is a composite number with 4 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 twenty-eight thousand and eighty-one is a composite number with 4 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 twenty-eight thousand and eighty-one has the following 2 prime factors:

263
eb18
Two Hundred and Sixty-Three in Base 18 Octodecimal
487
19118
Four Hundred and Eighty-Seven in Base 18 Octodecimal

Prime Factorization

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

eb181 · 191181 = 13h5b18

Base Conversions

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