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18027064206 = 2321001503567
BaseRepresentation
bin10000110010011111…
…110010101110001110
31201112100002202010200
4100302133302232032
5243404412023311
612140450314330
71205504342334
oct206237625616
951470082120
1018027064206
117710898178
1235b12889a6
131913a181c8
14c30273b54
15707952556
hex4327f2b8e

18027064206 has 12 divisors (see below), whose sum is σ = 39058639152. Its totient is φ = 6009021396.

The previous prime is 18027064189. The next prime is 18027064217. The reversal of 18027064206 is 60246072081.

18027064206 is a `hidden beast` number, since 1 + 8 + 0 + 2 + 7 + 0 + 642 + 0 + 6 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 500751766 + ... + 500751801.

It is an arithmetic number, because the mean of its divisors is an integer number (3254886596).

Almost surely, 218027064206 is an apocalyptic number.

18027064206 is an abundant number, since it is smaller than the sum of its proper divisors (21031574946).

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

18027064206 is a wasteful number, since it uses less digits than its factorization.

18027064206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001503575 (or 1001503572 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 18027064206 in words is "eighteen billion, twenty-seven million, sixty-four thousand, two hundred six".

Divisors: 1 2 3 6 9 18 1001503567 2003007134 3004510701 6009021402 9013532103 18027064206