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28935111159 = 3222003146117
BaseRepresentation
bin11010111100101010…
…101100000111110111
32202200112111221111200
4122330222230013313
5433224342024114
621143111503543
72043016246443
oct327452540767
982615457450
1028935111159
11112a9130309
125736387bb3
132961888966
141586c49823
15b453cb409
hex6bcaac1f7

28935111159 has 12 divisors (see below), whose sum is σ = 41797346136. Its totient is φ = 19289065392.

The previous prime is 28935111157. The next prime is 28935111187. The reversal of 28935111159 is 95111153982.

It is a happy number.

28935111159 is a `hidden beast` number, since 2 + 89 + 3 + 511 + 1 + 1 + 59 = 666.

It is not a de Polignac number, because 28935111159 - 21 = 28935111157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28935111157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124969 + ... + 271085.

It is an arithmetic number, because the mean of its divisors is an integer number (3483112178).

Almost surely, 228935111159 is an apocalyptic number.

28935111159 is a deficient number, since it is larger than the sum of its proper divisors (12862234977).

28935111159 is a wasteful number, since it uses less digits than its factorization.

28935111159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168126 (or 168123 counting only the distinct ones).

The product of its digits is 97200, while the sum is 45.

The spelling of 28935111159 in words is "twenty-eight billion, nine hundred thirty-five million, one hundred eleven thousand, one hundred fifty-nine".

Divisors: 1 3 9 22003 66009 146117 198027 438351 1315053 3215012351 9645037053 28935111159