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28331877355 = 5371223125221
BaseRepresentation
bin11010011000101101…
…100010001111101011
32201010111102111021221
4122120231202033223
5431010430033410
621003202242511
72022042661345
oct323055421753
981114374257
1028331877355
1111019673881
1255a8356437
1328968ca192
14152aaa0295
15b0c4704da
hex698b623eb

28331877355 has 16 divisors (see below), whose sum is σ = 34945953984. Its totient is φ = 22034712960.

The previous prime is 28331877317. The next prime is 28331877373. The reversal of 28331877355 is 55377813382.

It is not a de Polignac number, because 28331877355 - 217 = 28331746283 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163645 + ... + 288865.

It is an arithmetic number, because the mean of its divisors is an integer number (2184122124).

Almost surely, 228331877355 is an apocalyptic number.

28331877355 is a deficient number, since it is larger than the sum of its proper divisors (6614076629).

28331877355 is a wasteful number, since it uses less digits than its factorization.

28331877355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126486.

The product of its digits is 4233600, while the sum is 52.

The spelling of 28331877355 in words is "twenty-eight billion, three hundred thirty-one million, eight hundred seventy-seven thousand, three hundred fifty-five".

Divisors: 1 5 37 185 1223 6115 45251 125221 226255 626105 4633177 23165885 153145283 765726415 5666375471 28331877355