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78068396 = 2274576101
BaseRepresentation
bin1001010011100…
…11101010101100
312102220021201002
410221303222230
5124441142041
611425135432
71635366440
oct451635254
9172807632
1078068396
1140081a3a
122218a578
1313235123
14a522820
156cc159b
hex4a73aac

78068396 has 24 divisors (see below), whose sum is σ = 156504096. Its totient is φ = 33379200.

The previous prime is 78068383. The next prime is 78068411. The reversal of 78068396 is 69386087.

It is a self number, because there is not a number n which added to its sum of digits gives 78068396.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9746 + ... + 15846.

It is an arithmetic number, because the mean of its divisors is an integer number (6521004).

Almost surely, 278068396 is an apocalyptic number.

It is an amenable number.

78068396 is an abundant number, since it is smaller than the sum of its proper divisors (78435700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78068396 is a wasteful number, since it uses less digits than its factorization.

78068396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6569 (or 6567 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 78068396 is about 8835.6321788540. The cubic root of 78068396 is about 427.3907174809.

The spelling of 78068396 in words is "seventy-eight million, sixty-eight thousand, three hundred ninety-six".

Divisors: 1 2 4 7 14 28 457 914 1828 3199 6101 6398 12202 12796 24404 42707 85414 170828 2788157 5576314 11152628 19517099 39034198 78068396