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28076858163 = 3219164192153
BaseRepresentation
bin11010001001100000…
…101101101100110011
32200110201120011201200
4122021200231230303
5430000133430123
620522012302243
72012525233224
oct321140555463
980421504650
1028076858163
11109a8722112
125536a71983
132855b1b053
141504c7924b
15ae4d99143
hex68982db33

28076858163 has 12 divisors (see below), whose sum is σ = 42689960040. Its totient is φ = 17732752416.

The previous prime is 28076858153. The next prime is 28076858177. The reversal of 28076858163 is 36185867082.

It is a de Polignac number, because none of the positive numbers 2k-28076858163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28076858153) 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 11 ways as a sum of consecutive naturals, for example, 82095906 + ... + 82096247.

It is an arithmetic number, because the mean of its divisors is an integer number (3557496670).

Almost surely, 228076858163 is an apocalyptic number.

28076858163 is a deficient number, since it is larger than the sum of its proper divisors (14613101877).

28076858163 is a wasteful number, since it uses less digits than its factorization.

28076858163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164192178 (or 164192175 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 28076858163 in words is "twenty-eight billion, seventy-six million, eight hundred fifty-eight thousand, one hundred sixty-three".

Divisors: 1 3 9 19 57 171 164192153 492576459 1477729377 3119650907 9358952721 28076858163