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68586068 = 2220178501
BaseRepresentation
bin1000001011010…
…00101001010100
311210001112101202
410011220221110
5120024223233
610450012032
71461654245
oct405505124
9153045352
1068586068
1135795801
121ab77018
1311295095
149174ccc
15604bbe8
hex4168a54

68586068 has 12 divisors (see below), whose sum is σ = 120099252. Its totient is φ = 34272000.

The previous prime is 68586059. The next prime is 68586079. The reversal of 68586068 is 86068586.

It can be written as a sum of positive squares in 2 ways, for example, as 30492484 + 38093584 = 5522^2 + 6172^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3818 + ... + 12318.

It is an arithmetic number, because the mean of its divisors is an integer number (10008271).

Almost surely, 268586068 is an apocalyptic number.

It is an amenable number.

68586068 is a deficient number, since it is larger than the sum of its proper divisors (51513184).

68586068 is a wasteful number, since it uses less digits than its factorization.

68586068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10522 (or 10520 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 47.

The square root of 68586068 is about 8281.6706044131. The cubic root of 68586068 is about 409.3347689462.

The spelling of 68586068 in words is "sixty-eight million, five hundred eighty-six thousand, sixty-eight".

Divisors: 1 2 4 2017 4034 8068 8501 17002 34004 17146517 34293034 68586068