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68434280344053 = 3213584908379009
BaseRepresentation
bin11111000111101100110001…
…11110000110100111110101
322222022020211122212012101200
433203312120332012213311
532432211401232002203
6401314135133243113
720262133156114011
oct1743663076064765
9288266748765350
1068434280344053
111a8948a71a3598
127813032033499
132c2542bba2620
1412c8345c71541
157da1ecbda9a3
hex3e3d98f869f5

68434280344053 has 12 divisors (see below), whose sum is σ = 106453324979820. Its totient is φ = 42113403288576.

The previous prime is 68434280344009. The next prime is 68434280344091. The reversal of 68434280344053 is 35044308243486.

68434280344053 is a `hidden beast` number, since 6 + 84 + 3 + 42 + 80 + 3 + 440 + 5 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 24500688333489 + 43933592010564 = 4949817^2 + 6628242^2 .

It is not a de Polignac number, because 68434280344053 - 214 = 68434280327669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68434280344153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 292454189388 + ... + 292454189621.

It is an arithmetic number, because the mean of its divisors is an integer number (8871110414985).

Almost surely, 268434280344053 is an apocalyptic number.

It is an amenable number.

68434280344053 is a deficient number, since it is larger than the sum of its proper divisors (38019044635767).

68434280344053 is a wasteful number, since it uses less digits than its factorization.

68434280344053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584908379028 (or 584908379025 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 54.

The spelling of 68434280344053 in words is "sixty-eight trillion, four hundred thirty-four billion, two hundred eighty million, three hundred forty-four thousand, fifty-three".

Divisors: 1 3 9 13 39 117 584908379009 1754725137027 5264175411081 7603808927117 22811426781351 68434280344053