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28125082368 = 283212207067
BaseRepresentation
bin11010001100011000…
…101011001100000000
32200121002022012220100
4122030120223030000
5430100010113433
620530454042400
72013652153455
oct321430531400
980532265810
1028125082368
1110a2296a729
12554b049400
132862b04096
14150b42d82c
15ae9222b13
hex68c62b300

28125082368 has 54 divisors (see below), whose sum is σ = 81091552724. Its totient is φ = 9375026688.

The previous prime is 28125082361. The next prime is 28125082393. The reversal of 28125082368 is 86328052182.

28125082368 is a `hidden beast` number, since 2 + 81 + 2 + 508 + 2 + 3 + 68 = 666.

It is not an unprimeable number, because it can be changed into a prime (28125082361) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 6101230 + ... + 6105837.

Almost surely, 228125082368 is an apocalyptic number.

It is an amenable number.

28125082368 is an abundant number, since it is smaller than the sum of its proper divisors (52966470356).

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

28125082368 is a wasteful number, since it uses less digits than its factorization.

28125082368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12207089 (or 12207072 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 28125082368 in words is "twenty-eight billion, one hundred twenty-five million, eighty-two thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 256 288 384 576 768 1152 2304 12207067 24414134 36621201 48828268 73242402 97656536 109863603 146484804 195313072 219727206 292969608 390626144 439454412 585939216 781252288 878908824 1171878432 1562504576 1757817648 2343756864 3125009152 3515635296 4687513728 7031270592 9375027456 14062541184 28125082368