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28110611146 = 2831220313877
BaseRepresentation
bin11010001011100001…
…011110001011001010
32200120002002000010011
4122023201132023022
5430032304024041
620525215542134
72013415152352
oct321341361312
980502060104
1028110611146
1110a15786242
12554622a94a
13285cb08327
141509543b62
15ae7d14e81
hex68b85e2ca

28110611146 has 16 divisors (see below), whose sum is σ = 42680512224. Its totient is φ = 13883826064.

The previous prime is 28110611141. The next prime is 28110611161. The reversal of 28110611146 is 64111601182.

It is not an unprimeable number, because it can be changed into a prime (28110611141) 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 7 ways as a sum of consecutive naturals, for example, 2018760 + ... + 2032636.

It is an arithmetic number, because the mean of its divisors is an integer number (2667532014).

Almost surely, 228110611146 is an apocalyptic number.

28110611146 is a deficient number, since it is larger than the sum of its proper divisors (14569901078).

28110611146 is a wasteful number, since it uses less digits than its factorization.

28110611146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26165.

The product of its (nonzero) digits is 2304, while the sum is 31.

The spelling of 28110611146 in words is "twenty-eight billion, one hundred ten million, six hundred eleven thousand, one hundred forty-six".

Divisors: 1 2 83 166 12203 13877 24406 27754 1012849 1151791 2025698 2303582 169341031 338682062 14055305573 28110611146