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68380175984 = 2411633674773
BaseRepresentation
bin111111101011110001…
…101010111001110000
320112111112100212001112
4333223301222321300
52110020311112414
651225144252452
74640344622441
oct775361527160
9215445325045
1068380175984
1126aaa91033a
1211304471128
1365a99905c3
1434498412c8
151ba32e7d3e
hexfebc6ae70

68380175984 has 20 divisors (see below), whose sum is σ = 132600545016. Its totient is φ = 34160680512.

The previous prime is 68380175977. The next prime is 68380176023. The reversal of 68380175984 is 48957108386.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1818779 + ... + 1855994.

Almost surely, 268380175984 is an apocalyptic number.

It is an amenable number.

68380175984 is a deficient number, since it is larger than the sum of its proper divisors (64220369032).

68380175984 is a wasteful number, since it uses less digits than its factorization.

68380175984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3675944 (or 3675938 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 59.

The spelling of 68380175984 in words is "sixty-eight billion, three hundred eighty million, one hundred seventy-five thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 16 1163 2326 4652 9304 18608 3674773 7349546 14699092 29398184 58796368 4273760999 8547521998 17095043996 34190087992 68380175984