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28757185676 = 2216344106113
BaseRepresentation
bin11010110010000011…
…111101010010001100
32202020010201101121222
4122302003331102030
5432343314420201
621113314142512
72035426021322
oct326203752214
982203641558
1028757185676
111121775525a
1256a6881a38
132933a600cb
14156b371d12
15b3498291b
hex6b20fd48c

28757185676 has 12 divisors (see below), whose sum is σ = 50633818872. Its totient is φ = 14290380288.

The previous prime is 28757185673. The next prime is 28757185727. The reversal of 28757185676 is 67658175782.

It is not an unprimeable number, because it can be changed into a prime (28757185673) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 22052405 + ... + 22053708.

It is an arithmetic number, because the mean of its divisors is an integer number (4219484906).

Almost surely, 228757185676 is an apocalyptic number.

It is an amenable number.

28757185676 is a deficient number, since it is larger than the sum of its proper divisors (21876633196).

28757185676 is a wasteful number, since it uses less digits than its factorization.

28757185676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44106280 (or 44106278 counting only the distinct ones).

The product of its digits is 39513600, while the sum is 62.

The spelling of 28757185676 in words is "twenty-eight billion, seven hundred fifty-seven million, one hundred eighty-five thousand, six hundred seventy-six".

Divisors: 1 2 4 163 326 652 44106113 88212226 176424452 7189296419 14378592838 28757185676