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68525350428 = 2235710445869
BaseRepresentation
bin111111110100011011…
…011101111000011100
320112212122112110221210
4333310123131320130
52110314442203203
651251412024420
74644056603523
oct776433357034
9215778473853
1068525350428
1127074857017
1211345002110
136600a8cc42
143460c314ba
151bb0e22803
hexff46dde1c

68525350428 has 12 divisors (see below), whose sum is σ = 159892484360. Its totient is φ = 22841783472.

The previous prime is 68525350427. The next prime is 68525350459. The reversal of 68525350428 is 82405352586.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68525350427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2855222923 + ... + 2855222946.

Almost surely, 268525350428 is an apocalyptic number.

It is an amenable number.

68525350428 is an abundant number, since it is smaller than the sum of its proper divisors (91367133932).

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

68525350428 is a wasteful number, since it uses less digits than its factorization.

68525350428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5710445876 (or 5710445874 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 48.

The spelling of 68525350428 in words is "sixty-eight billion, five hundred twenty-five million, three hundred fifty thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 5710445869 11420891738 17131337607 22841783476 34262675214 68525350428