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68959 = 116269
BaseRepresentation
bin10000110101011111
310111121001
4100311133
54201314
61251131
7405022
oct206537
9114531
1068959
11478a0
1233aa7
1325507
141b1b9
1515674
hex10d5f

68959 has 4 divisors (see below), whose sum is σ = 75240. Its totient is φ = 62680.

The previous prime is 68947. The next prime is 68963. The reversal of 68959 is 95986.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68959 - 25 = 68927 is a prime.

It is a d-powerful number, because it can be written as 63 + 8 + 94 + 55 + 95 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68909) 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, 3124 + ... + 3145.

It is an arithmetic number, because the mean of its divisors is an integer number (18810).

268959 is an apocalyptic number.

68959 is a deficient number, since it is larger than the sum of its proper divisors (6281).

68959 is a wasteful number, since it uses less digits than its factorization.

68959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6280.

The product of its digits is 19440, while the sum is 37.

The square root of 68959 is about 262.6004569684. The cubic root of 68959 is about 41.0075338129.

The spelling of 68959 in words is "sixty-eight thousand, nine hundred fifty-nine".

Divisors: 1 11 6269 68959