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68546571 = 323119887
BaseRepresentation
bin1000001010111…
…11000000001011
311202222112012220
410011133000023
5120021442241
610445105123
71461431142
oct405370013
9152875186
1068546571
1135769065
121ab581a3
1311280102
149164759
156040166
hex415f00b

68546571 has 8 divisors (see below), whose sum is σ = 91444224. Its totient is φ = 45673320.

The previous prime is 68546557. The next prime is 68546573. The reversal of 68546571 is 17564586.

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

It is not a de Polignac number, because 68546571 - 26 = 68546507 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (68546573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1990 + ... + 11876.

It is an arithmetic number, because the mean of its divisors is an integer number (11430528).

Almost surely, 268546571 is an apocalyptic number.

68546571 is a deficient number, since it is larger than the sum of its proper divisors (22897653).

68546571 is a wasteful number, since it uses less digits than its factorization.

68546571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12201.

The product of its digits is 201600, while the sum is 42.

The square root of 68546571 is about 8279.2856575915. The cubic root of 68546571 is about 409.2561786420.

The spelling of 68546571 in words is "sixty-eight million, five hundred forty-six thousand, five hundred seventy-one".

Divisors: 1 3 2311 6933 9887 29661 22848857 68546571