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28533384342 = 2321585188019
BaseRepresentation
bin11010100100101110…
…001110010010010110
32201122112121002220200
4122210232032102112
5431414021244332
621035201241330
72030040523311
oct324456162226
981575532820
1028533384342
1111112395a81
125643933246
1328c9591398
141549755978
15b1eec617c
hex6a4b8e496

28533384342 has 12 divisors (see below), whose sum is σ = 61822332780. Its totient is φ = 9511128108.

The previous prime is 28533384337. The next prime is 28533384371. The reversal of 28533384342 is 24348333582.

28533384342 is a `hidden beast` number, since 2 + 8 + 533 + 3 + 84 + 34 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 792593992 + ... + 792594027.

It is an arithmetic number, because the mean of its divisors is an integer number (5151861065).

Almost surely, 228533384342 is an apocalyptic number.

28533384342 is an abundant number, since it is smaller than the sum of its proper divisors (33288948438).

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

28533384342 is a wasteful number, since it uses less digits than its factorization.

28533384342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585188027 (or 1585188024 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 45.

The spelling of 28533384342 in words is "twenty-eight billion, five hundred thirty-three million, three hundred eighty-four thousand, three hundred forty-two".

Divisors: 1 2 3 6 9 18 1585188019 3170376038 4755564057 9511128114 14266692171 28533384342