The Number
51991
Fifty-One Thousand Nine Hundred and Ninety-One
In Base 21 Unovigesimal Is
5cig21
The numbers with a 21 subscript use Base 21 Unovigesimal notation.
For more familiar numbers: See Fifty-One Thousand Nine 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.
5.1991e4
Reciprocal
A number multiplied with its reciprocal is one.
0.0003fbd6c8hjf34h21
The reciprocal of 51991 in Base 21 Unovigesimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 5cig21 is not a palindrome.
A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
Fifty-one thousand nine hundred and ninety-one is the 5319th prime number. See primes in Base 21 Unovigesimal
Not A Composite
Composites have more than just these two factors.
Fifty-One Thousand Nine Hundred and Ninety-One is not a composite number because it has exactly two factors: One and Fifty-One Thousand Nine Hundred and Ninety-One
Prime Factors
The number fifty-one thousand nine 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
5cig211
= 5cig21
Base Conversions
The number fifty-one thousand nine hundred and ninety-one in 35 different bases