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68147256298 = 2119731934047
BaseRepresentation
bin111111011101111001…
…001001101111101010
320111220022002022022111
4333131321021233222
52104031144200143
651150104112534
74631516056342
oct773571115752
9214808068274
1068147256298
11269a0393330
121125a46574a
13657064b3c4
14342692dd22
151b8cb3999d
hexfdde49bea

68147256298 has 16 divisors (see below), whose sum is σ = 112663321344. Its totient is φ = 30656684160.

The previous prime is 68147256293. The next prime is 68147256367. The reversal of 68147256298 is 89265274186.

It is not an unprimeable number, because it can be changed into a prime (68147256293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15964890 + ... + 15969157.

It is an arithmetic number, because the mean of its divisors is an integer number (7041457584).

Almost surely, 268147256298 is an apocalyptic number.

68147256298 is a deficient number, since it is larger than the sum of its proper divisors (44516065046).

68147256298 is a wasteful number, since it uses less digits than its factorization.

68147256298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31934157.

The product of its digits is 11612160, while the sum is 58.

The spelling of 68147256298 in words is "sixty-eight billion, one hundred forty-seven million, two hundred fifty-six thousand, two hundred ninety-eight".

Divisors: 1 2 11 22 97 194 1067 2134 31934047 63868094 351274517 702549034 3097602559 6195205118 34073628149 68147256298