The Number

138381

One Hundred and Thirty-Eight Thousand Three Hundred and Eighty-One

In Base 18 Octodecimal Is

15d1f18

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

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

Nearby Numbers

Positive, nonzero integers within three units

138378
15d1c18
One Hundred and Thirty-Eight Thousand Three Hundred and Seventy-Eight in Base 18 Octodecimal
138379
15d1d18
One Hundred and Thirty-Eight Thousand Three Hundred and Seventy-Nine in Base 18 Octodecimal
138380
15d1e18
One Hundred and Thirty-Eight Thousand Three Hundred and Eighty in Base 18 Octodecimal
138382
15d1g18
One Hundred and Thirty-Eight Thousand Three Hundred and Eighty-Two in Base 18 Octodecimal
138383
15d1h18
One Hundred and Thirty-Eight Thousand Three Hundred and Eighty-Three in Base 18 Octodecimal
138384
15d2018
One Hundred and Thirty-Eight Thousand Three Hundred 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.

1.38381e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000dbe2gbd7bc8a718

The reciprocal of 138381 in Base 18 Octodecimal.

Palindrome?

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

The number 15d1f18 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 thirty-eight thousand three hundred and eighty-one 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.

One hundred and thirty-eight thousand three hundred and eighty-one 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 one hundred and thirty-eight thousand three hundred and eighty-one has the following 3 prime factors:

3
318
Three in Base 18 Octodecimal
193
ad18
One Hundred and Ninety-Three in Base 18 Octodecimal
239
d518
Two Hundred and Thirty-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

3181 · ad181 · d5181 = 15d1f18

Base Conversions

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