The Number
8191
Eight Thousand One Hundred and Ninety-One
In Base 20 Vigesimal Is
109b20
The numbers with a 20 subscript use Base 20 Vigesimal notation.
For more familiar numbers: See Eight Thousand One 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.
8.191e3
Reciprocal
A number multiplied with its reciprocal is one.
0.000jad91a6a7eg1920
The reciprocal of 8191 in Base 20 Vigesimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 109b20 is not a palindrome.
A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
Eight thousand one hundred and ninety-one is the 1028th prime number. See primes in Base 20 Vigesimal
Not A Composite
Composites have more than just these two factors.
Eight Thousand One Hundred and Ninety-One is not a composite number because it has exactly two factors: One and Eight Thousand One Hundred and Ninety-One
Prime Factors
The number eight thousand one hundred and ninety-one 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
109b201
= 109b20
Base Conversions
The number eight thousand one hundred and ninety-one in 35 different bases