The Number
12811
Twelve Thousand Eight Hundred and Eleven
In Base 21 Unovigesimal Is
181121
The numbers with a 21 subscript use Base 21 Unovigesimal notation.
For more familiar numbers: See Twelve Thousand Eight Hundred and Eleven 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.
1.2811e4
Reciprocal
A number multiplied with its reciprocal is one.
0.000f3gf4eaj87f821
The reciprocal of 12811 in Base 21 Unovigesimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 181121 is not a palindrome.
Not A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
Twelve thousand eight hundred and eleven is a composite number with 4 total factors (including 1 and itself). See primes in Base 21 Unovigesimal
A Composite
Composites have more than just these two factors.
Twelve thousand eight hundred and eleven is a composite number with 4 total factors (including 1 and itself).
Prime Factors
The number twelve thousand eight hundred and eleven 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
12211
·
15b211
= 181121
Base Conversions
The number twelve thousand eight hundred and eleven in 35 different bases