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68076185 = 583164039
BaseRepresentation
bin1000000111011…
…00001010011001
311202002121222012
410003230022121
5114411414220
610431035305
71454431562
oct403541231
9152077865
1068076185
1135477711
121a96bb35
1311146c88
149081169
155e9aac5
hex40ec299

68076185 has 8 divisors (see below), whose sum is σ = 82676160. Its totient is φ = 53804464.

The previous prime is 68076179. The next prime is 68076193. The reversal of 68076185 is 58167086.

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 68076185 - 226 = 967321 is a prime.

It is an unprimeable number.

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, 81605 + ... + 82434.

It is an arithmetic number, because the mean of its divisors is an integer number (10334520).

Almost surely, 268076185 is an apocalyptic number.

It is an amenable number.

68076185 is a deficient number, since it is larger than the sum of its proper divisors (14599975).

68076185 is a wasteful number, since it uses less digits than its factorization.

68076185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164127.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 68076185 is about 8250.8293522530. The cubic root of 68076185 is about 408.3178851113.

Subtracting from 68076185 its reverse (58167086), we obtain a palindrome (9909099).

The spelling of 68076185 in words is "sixty-eight million, seventy-six thousand, one hundred eighty-five".

Divisors: 1 5 83 415 164039 820195 13615237 68076185