The Number
397
Three Hundred and Ninety-Seven
In Base 21 Unovigesimal Is
ij21
The numbers with a 21 subscript use Base 21 Unovigesimal notation.
For more familiar numbers: See Three Hundred and Ninety-Seven 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.
3.97e2
Reciprocal
A number multiplied with its reciprocal is one.
0.0126i8bk1024df21
The reciprocal of 397 in Base 21 Unovigesimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number ij21 is not a palindrome.
A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
Three hundred and ninety-seven is the 78th prime number. See primes in Base 21 Unovigesimal
Not A Composite
Composites have more than just these two factors.
Three Hundred and Ninety-Seven is not a composite number because it has exactly two factors: One and Three Hundred and Ninety-Seven
Prime Factors
The number three hundred and ninety-seven 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
ij211
= ij21
Base Conversions
The number three hundred and ninety-seven in 35 different bases