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28676444 = 227398207
BaseRepresentation
bin110110101100…
…1000101011100
31222221220200112
41231121011130
524320121234
62502345152
7465513536
oct155310534
958856615
1028676444
1115207045
12972b1b8
135c30714
143b46856
1527b6ace
hex1b5915c

28676444 has 12 divisors (see below), whose sum is σ = 50871744. Its totient is φ = 14141664.

The previous prime is 28676441. The next prime is 28676449. The reversal of 28676444 is 44467682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28676441) 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, 48812 + ... + 49395.

It is an arithmetic number, because the mean of its divisors is an integer number (4239312).

Almost surely, 228676444 is an apocalyptic number.

It is an amenable number.

28676444 is a deficient number, since it is larger than the sum of its proper divisors (22195300).

28676444 is a wasteful number, since it uses less digits than its factorization.

28676444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98284 (or 98282 counting only the distinct ones).

The product of its digits is 258048, while the sum is 41.

The square root of 28676444 is about 5355.0391221727. The cubic root of 28676444 is about 306.0848014218.

The spelling of 28676444 in words is "twenty-eight million, six hundred seventy-six thousand, four hundred forty-four".

Divisors: 1 2 4 73 146 292 98207 196414 392828 7169111 14338222 28676444