The Number

138521

One Hundred and Thirty-Eight Thousand Five Hundred and Twenty-One

In Base 18 Octodecimal Is

15d9b18

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

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

Nearby Numbers

Positive, nonzero integers within three units

138518
15d9818
One Hundred and Thirty-Eight Thousand Five Hundred and Eightteen in Base 18 Octodecimal
138519
15d9918
One Hundred and Thirty-Eight Thousand Five Hundred and Nineteen in Base 18 Octodecimal
138520
15d9a18
One Hundred and Thirty-Eight Thousand Five Hundred and Twenty in Base 18 Octodecimal
138522
15d9c18
One Hundred and Thirty-Eight Thousand Five Hundred and Twenty-Two in Base 18 Octodecimal
138523
15d9d18
One Hundred and Thirty-Eight Thousand Five Hundred and Twenty-Three in Base 18 Octodecimal
138524
15d9e18
One Hundred and Thirty-Eight Thousand Five Hundred and Twenty-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.

1.38521e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000db9c7g9dh2f9718

The reciprocal of 138521 in Base 18 Octodecimal.

Palindrome?

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

The number 15d9b18 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 five hundred and twenty-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 thirty-eight thousand five hundred and twenty-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 thirty-eight thousand five hundred and twenty-one has the following 2 prime factors:

71
3h18
Seventy-One in Base 18 Octodecimal
1951
60718
One Thousand Nine Hundred and Fifty-One in Base 18 Octodecimal

Prime Factorization

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

3h181 · 607181 = 15d9b18

Base Conversions

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