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28083195 = 325789153
BaseRepresentation
bin110101100100…
…0001111111011
31221211202220100
41223020033323
524142130240
62441530443
7460463130
oct153101773
957752810
1028083195
1114941358
1294a3a23
135a8369a
143a30587
1526eae30
hex1ac83fb

28083195 has 24 divisors (see below), whose sum is σ = 55632096. Its totient is φ = 12837888.

The previous prime is 28083193. The next prime is 28083199. The reversal of 28083195 is 59138082.

It is not a de Polignac number, because 28083195 - 21 = 28083193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28083191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44262 + ... + 44891.

It is an arithmetic number, because the mean of its divisors is an integer number (2318004).

Almost surely, 228083195 is an apocalyptic number.

28083195 is a deficient number, since it is larger than the sum of its proper divisors (27548901).

28083195 is a wasteful number, since it uses less digits than its factorization.

28083195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89171 (or 89168 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 28083195 is about 5299.3579799821. The cubic root of 28083195 is about 303.9593486444.

The spelling of 28083195 in words is "twenty-eight million, eighty-three thousand, one hundred ninety-five".

Divisors: 1 3 5 7 9 15 21 35 45 63 105 315 89153 267459 445765 624071 802377 1337295 1872213 3120355 4011885 5616639 9361065 28083195