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28084033166 = 2721635713079
BaseRepresentation
bin11010001001111100…
…000101011010001110
32200111020001200222112
4122021330011122032
5430004003030131
620522430144022
72012643225500
oct321174053216
980436050875
1028084033166
1110a01782872
125539352012
132857460b07
141505bc5d70
15ae581502b
hex689f0568e

28084033166 has 48 divisors (see below), whose sum is σ = 49406797440. Its totient is φ = 11937345840.

The previous prime is 28084033163. The next prime is 28084033177. The reversal of 28084033166 is 66133048082.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28084033163) 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 23 ways as a sum of consecutive naturals, for example, 9119615 + ... + 9122693.

It is an arithmetic number, because the mean of its divisors is an integer number (1029308280).

Almost surely, 228084033166 is an apocalyptic number.

28084033166 is a deficient number, since it is larger than the sum of its proper divisors (21322764274).

28084033166 is a wasteful number, since it uses less digits than its factorization.

28084033166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3829 (or 3822 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 28084033166 in words is "twenty-eight billion, eighty-four million, thirty-three thousand, one hundred sixty-six".

Divisors: 1 2 7 14 49 98 163 326 571 1141 1142 2282 3079 3997 6158 7987 7994 15974 21553 27979 43106 55958 93073 150871 186146 301742 501877 651511 1003754 1303022 1758109 3513139 3516218 4560577 7026278 9121154 12306763 24591973 24613526 49183946 86147341 172294682 286571767 573143534 2006002369 4012004738 14042016583 28084033166