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28529016 = 2332351683
BaseRepresentation
bin110110011010…
…1000101111000
31222200102110020
41230311011320
524300412031
62455250440
7464330655
oct154650570
958612406
1028529016
11151162aa
129679a20
135bab599
143b08c2c
152788096
hex1b35178

28529016 has 32 divisors (see below), whose sum is σ = 74424960. Its totient is φ = 9096032.

The previous prime is 28528979. The next prime is 28529027. The reversal of 28529016 is 61092582.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

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 7 ways as a sum of consecutive naturals, for example, 25290 + ... + 26393.

It is an arithmetic number, because the mean of its divisors is an integer number (2325780).

Almost surely, 228529016 is an apocalyptic number.

It is an amenable number.

28529016 is an abundant number, since it is smaller than the sum of its proper divisors (45895944).

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

28529016 is a wasteful number, since it uses less digits than its factorization.

28529016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51715 (or 51711 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 28529016 is about 5341.2560320584. The cubic root of 28529016 is about 305.5593640860.

The spelling of 28529016 in words is "twenty-eight million, five hundred twenty-nine thousand, sixteen".

Divisors: 1 2 3 4 6 8 12 23 24 46 69 92 138 184 276 552 51683 103366 155049 206732 310098 413464 620196 1188709 1240392 2377418 3566127 4754836 7132254 9509672 14264508 28529016