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27804027368 = 2313220565109
BaseRepresentation
bin11001111001001111…
…111100100111101000
32122202201011221020102
4121321033330213220
5423420312333433
620434544444532
72003003222165
oct317117744750
978681157212
1027804027368
1110878715317
12547b619748
132811443900
1414ba93906c
15acae554e8
hex6793fc9e8

27804027368 has 24 divisors (see below), whose sum is σ = 56451226950. Its totient is φ = 12832627392.

The previous prime is 27804027337. The next prime is 27804027371. The reversal of 27804027368 is 86372040872.

It can be written as a sum of positive squares in 3 ways, for example, as 14917691044 + 12886336324 = 122138^2 + 113518^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10281203 + ... + 10283906.

Almost surely, 227804027368 is an apocalyptic number.

It is an amenable number.

27804027368 is an abundant number, since it is smaller than the sum of its proper divisors (28647199582).

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

27804027368 is a wasteful number, since it uses less digits than its factorization.

27804027368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20565141 (or 20565124 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 47.

The spelling of 27804027368 in words is "twenty-seven billion, eight hundred four million, twenty-seven thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 13 26 52 104 169 338 676 1352 20565109 41130218 82260436 164520872 267346417 534692834 1069385668 2138771336 3475503421 6951006842 13902013684 27804027368