11
Number 11 properties
- 11 is an odd number.
- 11 is a palindrome.
- 11 is a prime number, which means it is only divisible by 1 and itself.
- 11 is a Sophie Germain prime, which means that 2 x 11 + 1 = 23 is also a prime number.
Number 11 - properties and curiosities
11 (number)
Prime factorization
Prime factorization of 11: 11.
Divisors
Divisor count: 2
1, 11
Factors of 11 are: 1, 11.
Representations
In octal, 11 is represented as 13.
In binary, 11 is represented as 1011.
In hex, 11 is represented as B.
Roman numeral: XI
Curiosities
- 11 is part of the infinite sequence of prime numbers.
- 11 reads the same from left to right and right to left.
Related numbers
Quick answers
Is 11 prime?
Yes, 11 is prime.
What are the factors of 11?
1, 11
What is 11 in binary?
1011