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523404077 = 71923171103
BaseRepresentation
bin11111001100101…
…000001100101101
31100110212200102012
4133030220030231
52032442412302
6123534211005
715653601260
oct3714501455
91313780365
10523404077
112494a2259
12127353a65
138458aa71
144d728cd7
1530e3ca52
hex1f32832d

523404077 has 16 divisors (see below), whose sum is σ = 657039360. Its totient is φ = 406538352.

The previous prime is 523404053. The next prime is 523404107. The reversal of 523404077 is 770404325.

It is a cyclic number.

It is not a de Polignac number, because 523404077 - 28 = 523403821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523404017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82493 + ... + 88610.

It is an arithmetic number, because the mean of its divisors is an integer number (41064960).

Almost surely, 2523404077 is an apocalyptic number.

It is an amenable number.

523404077 is a deficient number, since it is larger than the sum of its proper divisors (133635283).

523404077 is a wasteful number, since it uses less digits than its factorization.

523404077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171152.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 523404077 is about 22878.0260730685. The cubic root of 523404077 is about 805.8960622458.

The spelling of 523404077 in words is "five hundred twenty-three million, four hundred four thousand, seventy-seven".

Divisors: 1 7 19 23 133 161 437 3059 171103 1197721 3250957 3935369 22756699 27547583 74772011 523404077