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28860032063 = 131849218887
BaseRepresentation
bin11010111000001100…
…010010010000111111
32202111022020112100102
4122320030102100333
5433101132011223
621131430351315
72041115140112
oct327014222077
982438215312
1028860032063
111126a810275
1257151bb53b
13294c15c365
14157aca4579
15b3d9ea928
hex6b831243f

28860032063 has 4 divisors (see below), whose sum is σ = 28860382800. Its totient is φ = 28859681328.

The previous prime is 28860032057. The next prime is 28860032077. The reversal of 28860032063 is 36023006882.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 36023006882 = 218011503441.

It is a cyclic number.

It is not a de Polignac number, because 28860032063 - 28 = 28860031807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28860032053) 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, 22406 + ... + 241292.

It is an arithmetic number, because the mean of its divisors is an integer number (7215095700).

Almost surely, 228860032063 is an apocalyptic number.

28860032063 is a deficient number, since it is larger than the sum of its proper divisors (350737).

28860032063 is a wasteful number, since it uses less digits than its factorization.

28860032063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350736.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 28860032063 in words is "twenty-eight billion, eight hundred sixty million, thirty-two thousand, sixty-three".

Divisors: 1 131849 218887 28860032063