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28340379594 = 23219731135159
BaseRepresentation
bin11010011001001101…
…111101111111001010
32201011002102110011200
4122121031331333022
5431020114121334
621004104405030
72022205152252
oct323115757712
981132373150
1028340379594
111102345071a
1255ab176776
1328985b60a7
14152bc74962
15b0d09e799
hex69937dfca

28340379594 has 48 divisors (see below), whose sum is σ = 65521435200. Its totient is φ = 8826988608.

The previous prime is 28340379589. The next prime is 28340379643. The reversal of 28340379594 is 49597304382.

28340379594 is a `hidden beast` number, since 2 + 8 + 3 + 40 + 3 + 7 + 9 + 594 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 28340379594.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 542614 + ... + 592545.

It is an arithmetic number, because the mean of its divisors is an integer number (1365029900).

Almost surely, 228340379594 is an apocalyptic number.

28340379594 is an abundant number, since it is smaller than the sum of its proper divisors (37181055606).

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

28340379594 is a wasteful number, since it uses less digits than its factorization.

28340379594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135259 (or 1135256 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 28340379594 in words is "twenty-eight billion, three hundred forty million, three hundred seventy-nine thousand, five hundred ninety-four".

Divisors: 1 2 3 6 9 18 19 38 57 73 114 146 171 219 342 438 657 1314 1387 2774 4161 8322 12483 24966 1135159 2270318 3405477 6810954 10216431 20432862 21568021 43136042 64704063 82866607 129408126 165733214 194112189 248599821 388224378 497199642 745799463 1491598926 1574465533 3148931066 4723396599 9446793198 14170189797 28340379594