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27727041242 = 217978407229
BaseRepresentation
bin11001110100101010…
…010001001011011010
32122120100022122010102
4121310222101023122
5423241110304432
620423154415402
72001046650635
oct316452211332
978510278112
1027727041242
111083921251a
125459891562
1327cb4ca2a4
1414b0618c1c
15ac42e9962
hex674a912da

27727041242 has 16 divisors (see below), whose sum is σ = 44491061160. Its totient is φ = 12913502208.

The previous prime is 27727041239. The next prime is 27727041247. The reversal of 27727041242 is 24214072772.

It can be written as a sum of positive squares in 4 ways, for example, as 19351313881 + 8375727361 = 139109^2 + 91519^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27727041196 and 27727041205.

It is not an unprimeable number, because it can be changed into a prime (27727041247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4200317 + ... + 4206912.

Almost surely, 227727041242 is an apocalyptic number.

27727041242 is a deficient number, since it is larger than the sum of its proper divisors (16764019918).

27727041242 is a wasteful number, since it uses less digits than its factorization.

27727041242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8407345.

The product of its (nonzero) digits is 87808, while the sum is 38.

The spelling of 27727041242 in words is "twenty-seven billion, seven hundred twenty-seven million, forty-one thousand, two hundred forty-two".

Divisors: 1 2 17 34 97 194 1649 3298 8407229 16814458 142922893 285845786 815501213 1631002426 13863520621 27727041242