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28525196 = 2279531069
BaseRepresentation
bin110110011010…
…0001010001100
31222200020012202
41230310022030
524300301241
62455221032
7464313560
oct154641214
958606182
1028525196
1115113447
129677778
135ba991b
143b076a0
152786d9b
hex1b3428c

28525196 has 24 divisors (see below), whose sum is σ = 57163680. Its totient is φ = 12200832.

The previous prime is 28525157. The next prime is 28525219. The reversal of 28525196 is 69152582.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26150 + ... + 27218.

It is an arithmetic number, because the mean of its divisors is an integer number (2381820).

Almost surely, 228525196 is an apocalyptic number.

It is an amenable number.

28525196 is an abundant number, since it is smaller than the sum of its proper divisors (28638484).

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

28525196 is a wasteful number, since it uses less digits than its factorization.

28525196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033 (or 2031 counting only the distinct ones).

The product of its digits is 43200, while the sum is 38.

The square root of 28525196 is about 5340.8984262950. The cubic root of 28525196 is about 305.5457254701.

The spelling of 28525196 in words is "twenty-eight million, five hundred twenty-five thousand, one hundred ninety-six".

Divisors: 1 2 4 7 14 28 953 1069 1906 2138 3812 4276 6671 7483 13342 14966 26684 29932 1018757 2037514 4075028 7131299 14262598 28525196