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168285 = 3513863
BaseRepresentation
bin101001000101011101
322112211210
4221011131
520341120
63335033
71300425
oct510535
9275753
10168285
11105487
1281479
135b7a0
1445485
1534ce0
hex2915d

168285 has 16 divisors (see below), whose sum is σ = 290304. Its totient is φ = 82752.

The previous prime is 168281. The next prime is 168293. The reversal of 168285 is 582861.

168285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 168285 - 22 = 168281 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237 + ... + 626.

It is an arithmetic number, because the mean of its divisors is an integer number (18144).

2168285 is an apocalyptic number.

168285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

168285 is a deficient number, since it is larger than the sum of its proper divisors (122019).

168285 is a wasteful number, since it uses less digits than its factorization.

168285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884.

The product of its digits is 3840, while the sum is 30.

The square root of 168285 is about 410.2255477174. The cubic root of 168285 is about 55.2096680188.

It can be divided in two parts, 1 and 68285, that added together give a palindrome (68286).

The spelling of 168285 in words is "one hundred sixty-eight thousand, two hundred eighty-five".

Divisors: 1 3 5 13 15 39 65 195 863 2589 4315 11219 12945 33657 56095 168285