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68155 = 543317
BaseRepresentation
bin10000101000111011
310110111021
4100220323
54140110
61243311
7402463
oct205073
9113437
1068155
114722a
1233537
1325039
141aba3
15152da
hex10a3b

68155 has 8 divisors (see below), whose sum is σ = 83952. Its totient is φ = 53088.

The previous prime is 68147. The next prime is 68161. The reversal of 68155 is 55186.

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 68155 - 23 = 68147 is a prime.

It is a Duffinian 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, 57 + ... + 373.

It is an arithmetic number, because the mean of its divisors is an integer number (10494).

268155 is an apocalyptic number.

68155 is a deficient number, since it is larger than the sum of its proper divisors (15797).

68155 is a wasteful number, since it uses less digits than its factorization.

68155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365.

The product of its digits is 1200, while the sum is 25.

The square root of 68155 is about 261.0651259743. The cubic root of 68155 is about 40.8475400610.

The spelling of 68155 in words is "sixty-eight thousand, one hundred fifty-five".

Divisors: 1 5 43 215 317 1585 13631 68155