The Number

139128

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

In Base 18 Octodecimal Is

15f7618

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

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

Nearby Numbers

Positive, nonzero integers within three units

139125
15f7318
One Hundred and Thirty-Nine Thousand One Hundred and Twenty-Five in Base 18 Octodecimal
139126
15f7418
One Hundred and Thirty-Nine Thousand One Hundred and Twenty-Six in Base 18 Octodecimal
139127
15f7518
One Hundred and Thirty-Nine Thousand One Hundred and Twenty-Seven in Base 18 Octodecimal
139129
15f7718
One Hundred and Thirty-Nine Thousand One Hundred and Twenty-Nine in Base 18 Octodecimal
139130
15f7818
One Hundred and Thirty-Nine Thousand One Hundred and Thirty in Base 18 Octodecimal
139131
15f7918
One Hundred and Thirty-Nine Thousand One Hundred and Thirty-One in Base 18 Octodecimal

Scientific Notation

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

1.39128e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000da8766564729h18

The reciprocal of 139128 in Base 18 Octodecimal.

Palindrome?

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

The number 15f7618 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 one hundred and twenty-eight is a composite number with 64 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 one hundred and twenty-eight is a composite number with 64 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 one hundred and twenty-eight has the following 5 prime factors:

2
218
Two in Base 18 Octodecimal
3
318
Three in Base 18 Octodecimal
11
b18
Eleven in Base 18 Octodecimal
17
h18
Seventeen in Base 18 Octodecimal
31
1d18
Thirty-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

2183 · 3181 · b181 · h181 · 1d181 = 15f7618

Base Conversions

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