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28084604 = 229772383
BaseRepresentation
bin110101100100…
…0100101111100
31221211211211112
41223020211330
524142201404
62441541152
7460500212
oct153104574
957754745
1028084604
1114942419
1294a47b8
135a84212
143a30cb2
1526eb56e
hex1ac897c

28084604 has 12 divisors (see below), whose sum is σ = 49655424. Its totient is φ = 13897344.

The previous prime is 28084601. The next prime is 28084607. The reversal of 28084604 is 40648082.

It is an interprime number because it is at equal distance from previous prime (28084601) and next prime (28084607).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28084601) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 35804 + ... + 36579.

It is an arithmetic number, because the mean of its divisors is an integer number (4137952).

Almost surely, 228084604 is an apocalyptic number.

It is an amenable number.

28084604 is a deficient number, since it is larger than the sum of its proper divisors (21570820).

28084604 is a wasteful number, since it uses less digits than its factorization.

28084604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72484 (or 72482 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 28084604 is about 5299.4909189468. The cubic root of 28084604 is about 303.9644320114.

The spelling of 28084604 in words is "twenty-eight million, eighty-four thousand, six hundred four".

Divisors: 1 2 4 97 194 388 72383 144766 289532 7021151 14042302 28084604