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28560264 = 2331190011
BaseRepresentation
bin110110011110…
…0101110001000
31222202000022120
41230330232020
524302412024
62500051240
7464521035
oct154745610
958660276
1028560264
1115137827
129693b20
135bbc885
143b1638c
152792479
hex1b3cb88

28560264 has 16 divisors (see below), whose sum is σ = 71400720. Its totient is φ = 9520080.

The previous prime is 28560251. The next prime is 28560353. The reversal of 28560264 is 46206582.

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 3 ways as a sum of consecutive naturals, for example, 594982 + ... + 595029.

It is an arithmetic number, because the mean of its divisors is an integer number (4462545).

Almost surely, 228560264 is an apocalyptic number.

28560264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28560264 is an abundant number, since it is smaller than the sum of its proper divisors (42840456).

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

28560264 is a wasteful number, since it uses less digits than its factorization.

28560264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190020 (or 1190016 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 28560264 is about 5344.1803861771. The cubic root of 28560264 is about 305.6708837062.

The spelling of 28560264 in words is "twenty-eight million, five hundred sixty thousand, two hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 24 1190011 2380022 3570033 4760044 7140066 9520088 14280132 28560264