The Number
12809
Twelve Thousand Eight Hundred and Nine
In Base 21 Unovigesimal Is
180k21
The numbers with a 21 subscript use Base 21 Unovigesimal notation.
For more familiar numbers: See Twelve Thousand Eight Hundred and Nine 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.
1.2809e4
Reciprocal
A number multiplied with its reciprocal is one.
0.000f3hg3e3kd3i8b21
The reciprocal of 12809 in Base 21 Unovigesimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 180k21 is not a palindrome.
A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
Twelve thousand eight hundred and nine is the 1527th prime number. See primes in Base 21 Unovigesimal
Not A Composite
Composites have more than just these two factors.
Twelve Thousand Eight Hundred and Nine is not a composite number because it has exactly two factors: One and Twelve Thousand Eight Hundred and Nine
Prime Factors
The number twelve thousand eight hundred and nine 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
180k211
= 180k21
Base Conversions
The number twelve thousand eight hundred and nine in 35 different bases