The Number
138691
One Hundred and Thirty-Eight Thousand Six Hundred and Ninety-One
In Base 21 Unovigesimal Is
eka721
The numbers with a 21 subscript use Base 21 Unovigesimal notation.
For more familiar numbers: See One Hundred and Thirty-Eight Thousand Six Hundred and Ninety-One 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.
1.38691e5
Reciprocal
A number multiplied with its reciprocal is one.
0.0001898732ffk1b921
The reciprocal of 138691 in Base 21 Unovigesimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number eka721 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 six hundred and ninety-one is a composite number with 4 total factors (including 1 and itself). See primes in Base 21 Unovigesimal
A Composite
Composites have more than just these two factors.
One hundred and thirty-eight thousand six hundred and ninety-one is a composite number with 4 total factors (including 1 and itself).
Prime Factors
The number one hundred and thirty-eight thousand six hundred and ninety-one has the following 2 prime factors:
Prime Factorization
The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities
7211
·
22ja211
= eka721
Base Conversions
The number one hundred and thirty-eight thousand six hundred and ninety-one in 35 different bases