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28774271324 = 2231761736779
BaseRepresentation
bin11010110011000101…
…001000100101011100
32202021022212102201202
4122303011020211130
5432412203140244
621115124255032
72036024161601
oct326305104534
982238772652
1028774271324
1111226364a27
1256b0541478
132937462b66
14156d73c6a8
15b3620a04e
hex6b314895c

28774271324 has 24 divisors (see below), whose sum is σ = 50597069040. Its totient is φ = 14318116736.

The previous prime is 28774271231. The next prime is 28774271353. The reversal of 28774271324 is 42317247782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 763967 + ... + 800745.

It is an arithmetic number, because the mean of its divisors is an integer number (2108211210).

Almost surely, 228774271324 is an apocalyptic number.

It is an amenable number.

28774271324 is a deficient number, since it is larger than the sum of its proper divisors (21822797716).

28774271324 is a wasteful number, since it uses less digits than its factorization.

28774271324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37717 (or 37715 counting only the distinct ones).

The product of its digits is 1053696, while the sum is 47.

The spelling of 28774271324 in words is "twenty-eight billion, seven hundred seventy-four million, two hundred seventy-one thousand, three hundred twenty-four".

Divisors: 1 2 4 317 617 634 1234 1268 2468 36779 73558 147116 195589 391178 782356 11658943 22692643 23317886 45385286 46635772 90770572 7193567831 14387135662 28774271324