The Number
6561
Six Thousand Five Hundred and Sixty-One
In Base 11 Undecimal Is
4a2511
The numbers with a 11 subscript use Base 11 Undecimal notation.
For more familiar numbers: See Six Thousand Five Hundred and Sixty-One 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.
6.561e3
Reciprocal
A number multiplied with its reciprocal is one.
0.000226017508297a23a11
The reciprocal of 6561 in Base 11 Undecimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 4a2511 is not a palindrome.
Not A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
Six thousand five hundred and sixty-one is a composite number with 9 total factors (including 1 and itself). See primes in Base 11 Undecimal
A Composite
Composites have more than just these two factors.
Six thousand five hundred and sixty-one is a composite number with 9 total factors (including 1 and itself).
Prime Factors
The number six thousand five hundred and sixty-one 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
3118
= 4a2511
Base Conversions
The number six thousand five hundred and sixty-one in 35 different bases