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965 = 5193
BaseRepresentation
bin1111000101
31022202
433011
512330
64245
72546
oct1705
91282
10965
117a8
12685
13593
144cd
15445
hex3c5

965 has 4 divisors (see below), whose sum is σ = 1164. Its totient is φ = 768.

The previous prime is 953. The next prime is 967. The reversal of 965 is 569.

It can be divided in two parts, 96 and 5, that added together give a palindrome (101).

965 = T3 + T4 + ... + T17.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 289 + 676 = 17^2 + 26^2 .

It is a cyclic number.

It is not a de Polignac number, because 965 - 28 = 709 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14 and base 15.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (967) 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, 92 + ... + 101.

It is an arithmetic number, because the mean of its divisors is an integer number (291).

It is an amenable number.

965 is a deficient number, since it is larger than the sum of its proper divisors (199).

965 is a wasteful number, since it uses less digits than its factorization.

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

The sum of its prime factors is 198.

The product of its digits is 270, while the sum is 20.

The square root of 965 is about 31.0644491340. The cubic root of 965 is about 9.8819451223.

The spelling of 965 in words is "nine hundred sixty-five", and thus it is an aban number and an oban number.

Divisors: 1 5 193 965