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28525364 = 2271018763
BaseRepresentation
bin110110011010…
…0001100110100
31222200020102222
41230310030310
524300302424
62455221512
7464314220
oct154641464
958606388
1028525364
111511358a
129677898
135ba9a1a
143b07780
152786e5e
hex1b34334

28525364 has 12 divisors (see below), whose sum is σ = 57050784. Its totient is φ = 12225144.

The previous prime is 28525361. The next prime is 28525373. The reversal of 28525364 is 46352582.

28525364 is an admirable number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28525361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509354 + ... + 509409.

It is an arithmetic number, because the mean of its divisors is an integer number (4754232).

Almost surely, 228525364 is an apocalyptic number.

It is an amenable number.

28525364 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28525364 is a wasteful number, since it uses less digits than its factorization.

28525364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018774 (or 1018772 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 28525364 is about 5340.9141539628. The cubic root of 28525364 is about 305.5463253092.

The spelling of 28525364 in words is "twenty-eight million, five hundred twenty-five thousand, three hundred sixty-four".

Divisors: 1 2 4 7 14 28 1018763 2037526 4075052 7131341 14262682 28525364