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28050752442 = 2331150810497
BaseRepresentation
bin11010000111111101…
…001000001110111010
32200101220102212102010
4122013331020032322
5424421443034232
620515240550350
72012060314236
oct320775101672
980356385363
1028050752442
1110994a11539
12552a1823b6
1328505aa78b
1415016015c6
15ae293e0cc
hex687f483ba

28050752442 has 16 divisors (see below), whose sum is σ = 57911231232. Its totient is φ = 9048629760.

The previous prime is 28050752419. The next prime is 28050752453. The reversal of 28050752442 is 24425705082.

It is a self number, because there is not a number n which added to its sum of digits gives 28050752442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75405063 + ... + 75405434.

It is an arithmetic number, because the mean of its divisors is an integer number (3619451952).

Almost surely, 228050752442 is an apocalyptic number.

28050752442 is an abundant number, since it is smaller than the sum of its proper divisors (29860478790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28050752442 is a wasteful number, since it uses less digits than its factorization.

28050752442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150810533.

The product of its (nonzero) digits is 179200, while the sum is 39.

The spelling of 28050752442 in words is "twenty-eight billion, fifty million, seven hundred fifty-two thousand, four hundred forty-two".

Divisors: 1 2 3 6 31 62 93 186 150810497 301620994 452431491 904862982 4675125407 9350250814 14025376221 28050752442