The Number
139
One Hundred and Thirty-Nine
In Base 18 Octodecimal Is
7d18
The numbers with a 18 subscript use Base 18 Octodecimal notation.
For more familiar numbers: See One Hundred and Thirty-Nine in Base 10 Decimal
Nearby Numbers
Positive, nonzero integers within three units
Scientific Notation
Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.
1.39e2
Reciprocal
A number multiplied with its reciprocal is one.
0.025h404bg8095f18
The reciprocal of 139 in Base 18 Octodecimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 7d18 is not a palindrome.
A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
One hundred and thirty-nine is the 34th prime number. See primes in Base 18 Octodecimal
Not A Composite
Composites have more than just these two factors.
One Hundred and Thirty-Nine is not a composite number because it has exactly two factors: One and One Hundred and Thirty-Nine
Prime Factors
The number one hundred and thirty-nine has the following 1 prime factor:
Prime Factorization
The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities
7d181
= 7d18
Base Conversions
The number one hundred and thirty-nine in 35 different bases