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28486017 = 327452159
BaseRepresentation
bin110110010101…
…0100110000001
31222121020110200
41230222212001
524243023032
62454315413
7464061420
oct154524601
958536420
1028486017
1115096a6a
129658b69
135b94b41
143ad72b7
15277a47c
hex1b2a981

28486017 has 12 divisors (see below), whose sum is σ = 47024640. Its totient is φ = 16277688.

The previous prime is 28486013. The next prime is 28486037. The reversal of 28486017 is 71068482.

28486017 is a `hidden beast` number, since 2 + 8 + 48 + 601 + 7 = 666.

It is not a de Polignac number, because 28486017 - 22 = 28486013 is a prime.

It is a super-2 number, since 2×284860172 = 1622906329048578, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28486013) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 226017 + ... + 226142.

It is an arithmetic number, because the mean of its divisors is an integer number (3918720).

Almost surely, 228486017 is an apocalyptic number.

It is an amenable number.

28486017 is a deficient number, since it is larger than the sum of its proper divisors (18538623).

28486017 is a wasteful number, since it uses less digits than its factorization.

28486017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452172 (or 452169 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 28486017 is about 5337.2293373997. The cubic root of 28486017 is about 305.4057736321.

The spelling of 28486017 in words is "twenty-eight million, four hundred eighty-six thousand, seventeen".

Divisors: 1 3 7 9 21 63 452159 1356477 3165113 4069431 9495339 28486017