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68317 = 531289
BaseRepresentation
bin10000101011011101
310110201021
4100223131
54141232
61244141
7403114
oct205335
9113637
1068317
1147367
1233651
1325132
141ac7b
1515397
hex10add

68317 has 4 divisors (see below), whose sum is σ = 69660. Its totient is φ = 66976.

The previous prime is 68311. The next prime is 68329. The reversal of 68317 is 71386.

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 52441 + 15876 = 229^2 + 126^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68291 and 68300.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 68317.

It is not an unprimeable number, because it can be changed into a prime (68311) 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, 592 + ... + 697.

It is an arithmetic number, because the mean of its divisors is an integer number (17415).

268317 is an apocalyptic number.

It is an amenable number.

68317 is a deficient number, since it is larger than the sum of its proper divisors (1343).

68317 is a wasteful number, since it uses less digits than its factorization.

68317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342.

The product of its digits is 1008, while the sum is 25.

The square root of 68317 is about 261.3752092299. The cubic root of 68317 is about 40.8798784340.

It can be divided in two parts, 683 and 17, that multiplied together give a palindrome (11611).

The spelling of 68317 in words is "sixty-eight thousand, three hundred seventeen".

Divisors: 1 53 1289 68317