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68855 = 547293
BaseRepresentation
bin10000110011110111
310111110012
4100303313
54200410
61250435
7404513
oct206367
9114405
1068855
1147806
1233a1b
1325457
141b143
1515605
hex10cf7

68855 has 8 divisors (see below), whose sum is σ = 84672. Its totient is φ = 53728.

The previous prime is 68821. The next prime is 68863. The reversal of 68855 is 55886.

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 68855 - 26 = 68791 is a prime.

It is a super-2 number, since 2×688552 = 9482022050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89 + ... + 381.

It is an arithmetic number, because the mean of its divisors is an integer number (10584).

268855 is an apocalyptic number.

68855 is a deficient number, since it is larger than the sum of its proper divisors (15817).

68855 is a wasteful number, since it uses less digits than its factorization.

68855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345.

The product of its digits is 9600, while the sum is 32.

The square root of 68855 is about 262.4023627942. The cubic root of 68855 is about 40.9869083722.

The spelling of 68855 in words is "sixty-eight thousand, eight hundred fifty-five".

Divisors: 1 5 47 235 293 1465 13771 68855