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28030176 = 253297327
BaseRepresentation
bin110101011101…
…1010011100000
31221202002011200
41222323103200
524133431201
62440441200
7460152426
oct152732340
957662150
1028030176
1114905539
129479200
135a65505
143a19116
1526da386
hex1abb4e0

28030176 has 36 divisors (see below), whose sum is σ = 79711632. Its totient is φ = 9343296.

The previous prime is 28030099. The next prime is 28030193. The reversal of 28030176 is 67103082.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48376 + ... + 48951.

It is an arithmetic number, because the mean of its divisors is an integer number (2214212).

Almost surely, 228030176 is an apocalyptic number.

It is an amenable number.

28030176 is an abundant number, since it is smaller than the sum of its proper divisors (51681456).

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

28030176 is a wasteful number, since it uses less digits than its factorization.

28030176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97343 (or 97332 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 28030176 is about 5294.3532182883. The cubic root of 28030176 is about 303.7679438670.

The spelling of 28030176 in words is "twenty-eight million, thirty thousand, one hundred seventy-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 97327 194654 291981 389308 583962 778616 875943 1167924 1557232 1751886 2335848 3114464 3503772 4671696 7007544 9343392 14015088 28030176