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56725786228 = 2214181446557
BaseRepresentation
bin110100110101000111…
…101100111001110100
312102102022120111211111
4310311013230321310
51412133300124403
642020502244404
74045501140646
oct646507547164
9172368514744
1056725786228
112206a255871
12abb1426704
135470305ba7
142a61aaa896
15172009556d
hexd351ece74

56725786228 has 6 divisors (see below), whose sum is σ = 99270125906. Its totient is φ = 28362893112.

The previous prime is 56725786223. The next prime is 56725786237. The reversal of 56725786228 is 82268752765.

It can be written as a sum of positive squares in only one way, i.e., 47066434704 + 9659351524 = 216948^2 + 98282^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56725786223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7090723275 + ... + 7090723282.

Almost surely, 256725786228 is an apocalyptic number.

It is an amenable number.

56725786228 is a deficient number, since it is larger than the sum of its proper divisors (42544339678).

56725786228 is a wasteful number, since it uses less digits than its factorization.

56725786228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14181446561 (or 14181446559 counting only the distinct ones).

The product of its digits is 22579200, while the sum is 58.

The spelling of 56725786228 in words is "fifty-six billion, seven hundred twenty-five million, seven hundred eighty-six thousand, two hundred twenty-eight".

Divisors: 1 2 4 14181446557 28362893114 56725786228