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68047084 = 227349597
BaseRepresentation
bin1000000111001…
…01000011101100
311202001011001101
410003211003230
5114410001314
610430252444
71454251000
oct403450354
9152034041
1068047084
1135457866
121a957124
1311136961
149074700
155e92174
hex40e50ec

68047084 has 24 divisors (see below), whose sum is σ = 138874400. Its totient is φ = 29162448.

The previous prime is 68047081. The next prime is 68047099. The reversal of 68047084 is 48074086.

It is not an unprimeable number, because it can be changed into a prime (68047081) 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, 23427 + ... + 26170.

Almost surely, 268047084 is an apocalyptic number.

It is an amenable number.

68047084 is an abundant number, since it is smaller than the sum of its proper divisors (70827316).

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

68047084 is a wasteful number, since it uses less digits than its factorization.

68047084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49622 (or 49606 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 68047084 is about 8249.0656440593. The cubic root of 68047084 is about 408.2596946573.

The spelling of 68047084 in words is "sixty-eight million, forty-seven thousand, eighty-four".

Divisors: 1 2 4 7 14 28 49 98 196 343 686 1372 49597 99194 198388 347179 694358 1388716 2430253 4860506 9721012 17011771 34023542 68047084