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28083926 = 2131975483
BaseRepresentation
bin110101100100…
…0011011010110
31221211210220102
41223020123112
524142141201
62441534102
7460465223
oct153103326
957753812
1028083926
1114941962
1294a4332
135a83b10
143a3094a
1526eb26b
hex1ac86d6

28083926 has 16 divisors (see below), whose sum is σ = 45604944. Its totient is φ = 12893664.

The previous prime is 28083871. The next prime is 28083931. The reversal of 28083926 is 62938082.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28083926.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2381 + ... + 7863.

It is an arithmetic number, because the mean of its divisors is an integer number (2850309).

Almost surely, 228083926 is an apocalyptic number.

28083926 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28083926 is a deficient number, since it is larger than the sum of its proper divisors (17521018).

28083926 is a wasteful number, since it uses less digits than its factorization.

28083926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5695.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 28083926 is about 5299.4269501523. The cubic root of 28083926 is about 303.9619859554.

The spelling of 28083926 in words is "twenty-eight million, eighty-three thousand, nine hundred twenty-six".

Divisors: 1 2 13 26 197 394 2561 5122 5483 10966 71279 142558 1080151 2160302 14041963 28083926