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28075794 = 2310914289
BaseRepresentation
bin110101100011…
…0011100010010
31221211101202020
41223012130102
524141411134
62441432310
7460432425
oct153063422
957741666
1028075794
111493683a
12949b696
135a801c6
143a2b9bc
1526e8b49
hex1ac6712

28075794 has 16 divisors (see below), whose sum is σ = 56216160. Its totient is φ = 9347840.

The previous prime is 28075793. The next prime is 28075811. The reversal of 28075794 is 49757082.

It is not an unprimeable number, because it can be changed into a prime (28075793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4402 + ... + 8690.

It is an arithmetic number, because the mean of its divisors is an integer number (3513510).

Almost surely, 228075794 is an apocalyptic number.

28075794 is an abundant number, since it is smaller than the sum of its proper divisors (28140366).

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

28075794 is a wasteful number, since it uses less digits than its factorization.

28075794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5385.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 28075794 is about 5298.6596418340. The cubic root of 28075794 is about 303.9326446459.

The spelling of 28075794 in words is "twenty-eight million, seventy-five thousand, seven hundred ninety-four".

Divisors: 1 2 3 6 1091 2182 3273 4289 6546 8578 12867 25734 4679299 9358598 14037897 28075794