The Number
28513
Twenty-Eight Thousand Five Hundred and Thirteen
In Base 21 Unovigesimal Is
31dg21
The numbers with a 21 subscript use Base 21 Unovigesimal notation.
For more familiar numbers: See Twenty-Eight Thousand Five Hundred and Thirteen 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.
2.8513e4
Reciprocal
A number multiplied with its reciprocal is one.
0.0006h4k5gf3bie4g21
The reciprocal of 28513 in Base 21 Unovigesimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 31dg21 is not a palindrome.
A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
Twenty-eight thousand five hundred and thirteen is the 3101st prime number. See primes in Base 21 Unovigesimal
Not A Composite
Composites have more than just these two factors.
Twenty-Eight Thousand Five Hundred and Thirteen is not a composite number because it has exactly two factors: One and Twenty-Eight Thousand Five Hundred and Thirteen
Prime Factors
The number twenty-eight thousand five hundred and thirteen 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
31dg211
= 31dg21
Base Conversions
The number twenty-eight thousand five hundred and thirteen in 35 different bases