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28365368 = 238939839
BaseRepresentation
bin110110000110…
…1001000111000
31222101002222012
41230031020320
524230142433
62451545052
7463046603
oct154151070
958332865
1028365368
1115014359
1295bb188
135b51c55
143aa533a
152754848
hex1b0d238

28365368 has 16 divisors (see below), whose sum is σ = 53784000. Its totient is φ = 14022976.

The previous prime is 28365361. The next prime is 28365409. The reversal of 28365368 is 86356382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28365361) 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 3 ways as a sum of consecutive naturals, for example, 19208 + ... + 20631.

It is an arithmetic number, because the mean of its divisors is an integer number (3361500).

Almost surely, 228365368 is an apocalyptic number.

It is an amenable number.

28365368 is a deficient number, since it is larger than the sum of its proper divisors (25418632).

28365368 is a wasteful number, since it uses less digits than its factorization.

28365368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39934 (or 39930 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 28365368 is about 5325.9147571098. The cubic root of 28365368 is about 304.9739940202.

The spelling of 28365368 in words is "twenty-eight million, three hundred sixty-five thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 89 178 356 712 39839 79678 159356 318712 3545671 7091342 14182684 28365368