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18184713811 = 112437334367
BaseRepresentation
bin10000111011111001…
…001011011001010011
31201221022202011201221
4100323321023121103
5244220241320221
612204241305511
71212430342225
oct207371133123
951838664657
1018184713811
117791884700
123636035297
13193a594bb4
14c47190415
157166e3541
hex43be4b653

18184713811 has 12 divisors (see below), whose sum is σ = 19993309056. Its totient is φ = 16527296720.

The previous prime is 18184713797. The next prime is 18184713839. The reversal of 18184713811 is 11831748181.

It is not a de Polignac number, because 18184713811 - 27 = 18184713683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18184713311) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 511950 + ... + 546316.

It is an arithmetic number, because the mean of its divisors is an integer number (1666109088).

Almost surely, 218184713811 is an apocalyptic number.

18184713811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

18184713811 is a deficient number, since it is larger than the sum of its proper divisors (1808595245).

18184713811 is a wasteful number, since it uses less digits than its factorization.

18184713811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38762 (or 38751 counting only the distinct ones).

The product of its digits is 43008, while the sum is 43.

The spelling of 18184713811 in words is "eighteen billion, one hundred eighty-four million, seven hundred thirteen thousand, eight hundred eleven".

Divisors: 1 11 121 4373 34367 48103 378037 529133 4158407 150286891 1653155801 18184713811