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68522045298 = 23731616779163
BaseRepresentation
bin111111110100001110…
…110110111101110010
320112212102022120011120
4333310032312331302
52110313120422143
651251213123110
74644016526550
oct776416667562
9215772276146
1068522045298
11270729a9903
1211343a89496
1366001a3745
143460610bd0
151bb09bd383
hexff43b6f72

68522045298 has 256 divisors, whose sum is σ = 169924362240. Its totient is φ = 18013881600.

The previous prime is 68522045281. The next prime is 68522045369. The reversal of 68522045298 is 89254022586.

It is a self number, because there is not a number n which added to its sum of digits gives 68522045298.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 420380565 + ... + 420380727.

It is an arithmetic number, because the mean of its divisors is an integer number (663767040).

Almost surely, 268522045298 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68522045298, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84962181120).

68522045298 is an abundant number, since it is smaller than the sum of its proper divisors (101402316942).

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

68522045298 is a wasteful number, since it uses less digits than its factorization.

68522045298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413.

The product of its (nonzero) digits is 2764800, while the sum is 51.

The spelling of 68522045298 in words is "sixty-eight billion, five hundred twenty-two million, forty-five thousand, two hundred ninety-eight".