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28192076042 = 2132397210097
BaseRepresentation
bin11010010000011000…
…001111000100001010
32200202202100211221112
4122100120033010022
5430214132413132
620541250010322
72015424456344
oct322030170412
980682324845
1028192076042
1110a57767aa9
1255695769a2
13287395c400
1415162ac294
15b00057ab2
hex69060f10a

28192076042 has 24 divisors (see below), whose sum is σ = 45906833196. Its totient is φ = 12978890496.

The previous prime is 28192075999. The next prime is 28192076047. The reversal of 28192076042 is 24067029182.

It can be written as a sum of positive squares in 6 ways, for example, as 7131971401 + 21060104641 = 84451^2 + 145121^2 .

It is not an unprimeable number, because it can be changed into a prime (28192076047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29138 + ... + 239234.

Almost surely, 228192076042 is an apocalyptic number.

28192076042 is a deficient number, since it is larger than the sum of its proper divisors (17714757154).

28192076042 is a wasteful number, since it uses less digits than its factorization.

28192076042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210522 (or 210509 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 28192076042 in words is "twenty-eight billion, one hundred ninety-two million, seventy-six thousand, forty-two".

Divisors: 1 2 13 26 169 338 397 794 5161 10322 67093 134186 210097 420194 2731261 5462522 35506393 71012786 83408509 166817018 1084310617 2168621234 14096038021 28192076042