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28065083864 = 2343915435179
BaseRepresentation
bin11010001000110011…
…110011000111011000
32200102220101222102112
4122020303303013120
5424434130140424
620520512051452
72012323163636
oct321063630730
980386358375
1028065083864
11109a200a994
125532b33b88
1328535579cc
141503492356
15ae3d2060e
hex688cf31d8

28065083864 has 32 divisors (see below), whose sum is σ = 52786272000. Its totient is φ = 13988801952.

The previous prime is 28065083843. The next prime is 28065083873. The reversal of 28065083864 is 46838056082.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5416427 + ... + 5421605.

It is an arithmetic number, because the mean of its divisors is an integer number (1649571000).

Almost surely, 228065083864 is an apocalyptic number.

It is an amenable number.

28065083864 is a deficient number, since it is larger than the sum of its proper divisors (24721188136).

28065083864 is a wasteful number, since it uses less digits than its factorization.

28065083864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7167 (or 7163 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 50.

The spelling of 28065083864 in words is "twenty-eight billion, sixty-five million, eighty-three thousand, eight hundred sixty-four".

Divisors: 1 2 4 8 439 878 1543 1756 3086 3512 5179 6172 10358 12344 20716 41432 677377 1354754 2273581 2709508 4547162 5419016 7991197 9094324 15982394 18188648 31964788 63929576 3508135483 7016270966 14032541932 28065083864