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68865113 = 1725116139
BaseRepresentation
bin1000001101011…
…00110001011001
311210120201011202
410012230301121
5120112140423
610500003545
71464225632
oct406546131
9153521152
1068865113
1135966419
121b0905b5
13113620b5
149208889
1560a4728
hex41acc59

68865113 has 8 divisors (see below), whose sum is σ = 73211040. Its totient is φ = 64552000.

The previous prime is 68865091. The next prime is 68865119. The reversal of 68865113 is 31156886.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68865113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68865119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3803 + ... + 12336.

It is an arithmetic number, because the mean of its divisors is an integer number (9151380).

Almost surely, 268865113 is an apocalyptic number.

It is an amenable number.

68865113 is a deficient number, since it is larger than the sum of its proper divisors (4345927).

68865113 is a wasteful number, since it uses less digits than its factorization.

68865113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16407.

The product of its digits is 34560, while the sum is 38.

The square root of 68865113 is about 8298.5006477074. The cubic root of 68865113 is about 409.8891490922.

The spelling of 68865113 in words is "sixty-eight million, eight hundred sixty-five thousand, one hundred thirteen".

Divisors: 1 17 251 4267 16139 274363 4050889 68865113