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9685 = 513149
BaseRepresentation
bin10010111010101
3111021201
42113111
5302220
6112501
740144
oct22725
914251
109685
117305
125731
134540
14375b
152d0a
hex25d5

9685 has 8 divisors (see below), whose sum is σ = 12600. Its totient is φ = 7104.

The previous prime is 9679. The next prime is 9689. The reversal of 9685 is 5869.

It can be divided in two parts, 96 and 85, that added together give a palindrome (181).

It can be written as a sum of positive squares in 4 ways, for example, as 81 + 9604 = 9^2 + 98^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9685 - 23 = 9677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10 + ... + 139.

It is an arithmetic number, because the mean of its divisors is an integer number (1575).

29685 is an apocalyptic number.

It is an amenable number.

9685 is a deficient number, since it is larger than the sum of its proper divisors (2915).

9685 is a wasteful number, since it uses less digits than its factorization.

9685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167.

The product of its digits is 2160, while the sum is 28.

The square root of 9685 is about 98.4123975930. The cubic root of 9685 is about 21.3157135329.

The spelling of 9685 in words is "nine thousand, six hundred eighty-five".

Divisors: 1 5 13 65 149 745 1937 9685