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28885474716 = 223737017851
BaseRepresentation
bin11010111001101101…
…010101110110011100
32202120002010011002220
4122321231111312130
5433124140142331
621134135545340
72041544325000
oct327155256634
982502104086
1028885474716
111128310875a
12572182b250
1329544c9b97
141580408700
15b40d74296
hex6b9b55d9c

28885474716 has 48 divisors (see below), whose sum is σ = 78599942400. Its totient is φ = 8252991600.

The previous prime is 28885474643. The next prime is 28885474727. The reversal of 28885474716 is 61747458882.

It is a self number, because there is not a number n which added to its sum of digits gives 28885474716.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3504810 + ... + 3513041.

It is an arithmetic number, because the mean of its divisors is an integer number (1637498800).

Almost surely, 228885474716 is an apocalyptic number.

It is an amenable number.

28885474716 is an abundant number, since it is smaller than the sum of its proper divisors (49714467684).

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

28885474716 is a wasteful number, since it uses less digits than its factorization.

28885474716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7017879 (or 7017863 counting only the distinct ones).

The product of its digits is 24084480, while the sum is 60.

The spelling of 28885474716 in words is "twenty-eight billion, eight hundred eighty-five million, four hundred seventy-four thousand, seven hundred sixteen".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 294 343 588 686 1029 1372 2058 4116 7017851 14035702 21053553 28071404 42107106 49124957 84214212 98249914 147374871 196499828 294749742 343874699 589499484 687749398 1031624097 1375498796 2063248194 2407122893 4126496388 4814245786 7221368679 9628491572 14442737358 28885474716