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68712694 = 264753101
BaseRepresentation
bin1000001100001…
…11100011110110
311210021222002121
410012013203312
5120042301234
610452430154
71463022361
oct406074366
9153258077
1068712694
1135871956
121b01835a
131130a8cb
1491a90d8
1560744b4
hex41878f6

68712694 has 8 divisors (see below), whose sum is σ = 103230288. Its totient is φ = 34302600.

The previous prime is 68712653. The next prime is 68712697. The reversal of 68712694 is 49621786.

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

It is a self number, because there is not a number n which added to its sum of digits gives 68712694.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68712697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25257 + ... + 27844.

It is an arithmetic number, because the mean of its divisors is an integer number (12903786).

Almost surely, 268712694 is an apocalyptic number.

68712694 is a deficient number, since it is larger than the sum of its proper divisors (34517594).

68712694 is a wasteful number, since it uses less digits than its factorization.

68712694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53750.

The product of its digits is 145152, while the sum is 43.

The square root of 68712694 is about 8289.3120341799. The cubic root of 68712694 is about 409.5865234709.

The spelling of 68712694 in words is "sixty-eight million, seven hundred twelve thousand, six hundred ninety-four".

Divisors: 1 2 647 1294 53101 106202 34356347 68712694