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BaseRepresentation
bin10101100111001
3120011211
42230321
5323230
6123121
744155
oct25471
916154
1011065
11834a
1264a1
135062
144065
15342a
hex2b39

11065 has 4 divisors (see below), whose sum is σ = 13284. Its totient is φ = 8848.

The previous prime is 11059. The next prime is 11069. The reversal of 11065 is 56011.

Adding to 11065 its reverse (56011), we get a palindrome (67076).

It can be divided in two parts, 1106 and 5, that added together give a palindrome (1111).

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56011 = 79709.

It can be written as a sum of positive squares in 2 ways, for example, as 8464 + 2601 = 92^2 + 51^2 .

It is a cyclic number.

It is not a de Polignac number, because 11065 - 23 = 11057 is a prime.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1102 + ... + 1111.

It is an arithmetic number, because the mean of its divisors is an integer number (3321).

211065 is an apocalyptic number.

It is an amenable number.

11065 is a deficient number, since it is larger than the sum of its proper divisors (2219).

11065 is an equidigital number, since it uses as much as digits as its factorization.

11065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 11065 is about 105.1903037357. The cubic root of 11065 is about 22.2835205724.

The spelling of 11065 in words is "eleven thousand, sixty-five".

Divisors: 1 5 2213 11065