The Number

138491

One Hundred and Thirty-Eight Thousand Four Hundred and Ninety-One

In Base 18 Octodecimal Is

15d7h18

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

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

Nearby Numbers

Positive, nonzero integers within three units

138488
15d7e18
One Hundred and Thirty-Eight Thousand Four Hundred and Eighty-Eight in Base 18 Octodecimal
138489
15d7f18
One Hundred and Thirty-Eight Thousand Four Hundred and Eighty-Nine in Base 18 Octodecimal
138490
15d7g18
One Hundred and Thirty-Eight Thousand Four Hundred and Ninety in Base 18 Octodecimal
138492
15d8018
One Hundred and Thirty-Eight Thousand Four Hundred and Ninety-Two in Base 18 Octodecimal
138493
15d8118
One Hundred and Thirty-Eight Thousand Four Hundred and Ninety-Three in Base 18 Octodecimal
138494
15d8218
One Hundred and Thirty-Eight Thousand Four Hundred and Ninety-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.

1.38491e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000dbabc216f585e18

The reciprocal of 138491 in Base 18 Octodecimal.

Palindrome?

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

The number 15d7h18 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 four hundred and ninety-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 four hundred and ninety-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 four hundred and ninety-one has the following 3 prime factors:

19
1118
Nineteen in Base 18 Octodecimal
37
2118
Thirty-Seven in Base 18 Octodecimal
197
ah18
One Hundred and Ninety-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

11181 · 21181 · ah181 = 15d7h18

Base Conversions

The number one hundred and thirty-eight thousand four hundred and ninety-one in 35 different bases