The Number

139021

One Hundred and Thirty-Nine Thousand and Twenty-One

In Base 18 Octodecimal Is

15f1718

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

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

Nearby Numbers

Positive, nonzero integers within three units

139018
15f1418
One Hundred and Thirty-Nine Thousand and Eightteen in Base 18 Octodecimal
139019
15f1518
One Hundred and Thirty-Nine Thousand and Nineteen in Base 18 Octodecimal
139020
15f1618
One Hundred and Thirty-Nine Thousand and Twenty in Base 18 Octodecimal
139022
15f1818
One Hundred and Thirty-Nine Thousand and Twenty-Two in Base 18 Octodecimal
139023
15f1918
One Hundred and Thirty-Nine Thousand and Twenty-Three in Base 18 Octodecimal
139024
15f1a18
One Hundred and Thirty-Nine Thousand 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.

1.39021e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000dabe5c7b98hb318

The reciprocal of 139021 in Base 18 Octodecimal.

Palindrome?

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

The number 15f1718 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-nine thousand and twenty-one is a composite number with 2 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-nine thousand and twenty-one is a composite number with 2 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-nine thousand and twenty-one has the following 1 prime factor:

139021
15f1718
One Hundred and Thirty-Nine Thousand and Twenty-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

15f17181 = 15f1718

Base Conversions

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