The Number
81728
Eighty-One Thousand Seven Hundred and Twenty-Eight
In Base 21 Unovigesimal Is
8h6h21
The numbers with a 21 subscript use Base 21 Unovigesimal notation.
For more familiar numbers: See Eighty-One Thousand Seven Hundred and Twenty-Eight 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.
8.1728e4
Reciprocal
A number multiplied with its reciprocal is one.
0.00027k8ca5e1fe4421
The reciprocal of 81728 in Base 21 Unovigesimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 8h6h21 is not a palindrome.
Not A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
Eighty-one thousand seven hundred and twenty-eight is a composite number with 14 total factors (including 1 and itself). See primes in Base 21 Unovigesimal
A Composite
Composites have more than just these two factors.
Eighty-one thousand seven hundred and twenty-eight is a composite number with 14 total factors (including 1 and itself).
Prime Factors
The number eighty-one thousand seven hundred and twenty-eight has the following 2 prime factors:
Prime Factorization
The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities
2216
·
2ih211
= 8h6h21
Base Conversions
The number eighty-one thousand seven hundred and twenty-eight in 35 different bases