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28095886 = 2713154373
BaseRepresentation
bin110101100101…
…1010110001110
31221212102022101
41223023112032
524143032021
62442105314
7460545130
oct153132616
957772271
1028095886
111494a945
1294ab23a
135a893b0
143a35050
1526eea91
hex1acb58e

28095886 has 16 divisors (see below), whose sum is σ = 51869664. Its totient is φ = 11114784.

The previous prime is 28095871. The next prime is 28095911. The reversal of 28095886 is 68859082.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77005 + ... + 77368.

It is an arithmetic number, because the mean of its divisors is an integer number (3241854).

Almost surely, 228095886 is an apocalyptic number.

28095886 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28095886 is a deficient number, since it is larger than the sum of its proper divisors (23773778).

28095886 is a wasteful number, since it uses less digits than its factorization.

28095886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154395.

The product of its (nonzero) digits is 276480, while the sum is 46.

The square root of 28095886 is about 5300.5552539333. Note that the first 3 decimals coincide. The cubic root of 28095886 is about 304.0051288955.

The spelling of 28095886 in words is "twenty-eight million, ninety-five thousand, eight hundred eighty-six".

Divisors: 1 2 7 13 14 26 91 182 154373 308746 1080611 2006849 2161222 4013698 14047943 28095886