The Number
4991
Four Thousand Nine Hundred and Ninety-One
In Base 20 Vigesimal Is
c9b20
The numbers with a 20 subscript use Base 20 Vigesimal notation.
For more familiar numbers: See Four 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.
4.991e3
Reciprocal
A number multiplied with its reciprocal is one.
0.001c131cc79e3fh20
The reciprocal of 4991 in Base 20 Vigesimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number c9b20 is not a palindrome.
Not A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
Four thousand nine hundred and ninety-one is a composite number with 8 total factors (including 1 and itself). See primes in Base 20 Vigesimal
A Composite
Composites have more than just these two factors.
Four thousand nine hundred and ninety-one is a composite number with 8 total factors (including 1 and itself).
Prime Factors
The number four thousand nine hundred and ninety-one has the following 3 prime factors:
Prime Factorization
The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities
7201
·
13201
·
1b201
= c9b20
Base Conversions
The number four thousand nine hundred and ninety-one in 35 different bases