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28002800528 = 242474970717
BaseRepresentation
bin11010000101000110…
…001101001110010000
32200021120012122202022
4122011012031032100
5424322204104103
620510405111012
72010635606603
oct320506151620
980246178668
1028002800528
111096a93a55a
1255160b8468
13284368b671
1414d90bc33a
15add61b138
hex68518d390

28002800528 has 20 divisors (see below), whose sum is σ = 54258385500. Its totient is φ = 14000636544.

The previous prime is 28002800509. The next prime is 28002800561. The reversal of 28002800528 is 82500820082.

It can be written as a sum of positive squares in 2 ways, for example, as 22634600704 + 5368199824 = 150448^2 + 73268^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360626 + ... + 431342.

It is an arithmetic number, because the mean of its divisors is an integer number (2712919275).

Almost surely, 228002800528 is an apocalyptic number.

It is an amenable number.

28002800528 is a deficient number, since it is larger than the sum of its proper divisors (26255584972).

28002800528 is a wasteful number, since it uses less digits than its factorization.

28002800528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95474 (or 95468 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 35.

The spelling of 28002800528 in words is "twenty-eight billion, two million, eight hundred thousand, five hundred twenty-eight".

Divisors: 1 2 4 8 16 24749 49498 70717 98996 141434 197992 282868 395984 565736 1131472 1750175033 3500350066 7000700132 14001400264 28002800528