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18163034137 = 312692178083
BaseRepresentation
bin10000111010100110…
…011110100000011001
31201212210221201211001
4100322212132200121
5244144214043022
612202144505001
71212045146203
oct207246364031
951783851731
1018163034137
117780617416
12362a91b161
131935c440a1
14c44349773
1571485eb27
hex43a99e819

18163034137 has 8 divisors (see below), whose sum is σ = 18818645760. Its totient is φ = 17511779280.

The previous prime is 18163034093. The next prime is 18163034177. The reversal of 18163034137 is 73143036181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18163034137 - 215 = 18163001369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18163034096 and 18163034105.

It is not an unprimeable number, because it can be changed into a prime (18163034177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1080703 + ... + 1097380.

It is an arithmetic number, because the mean of its divisors is an integer number (2352330720).

Almost surely, 218163034137 is an apocalyptic number.

It is an amenable number.

18163034137 is a deficient number, since it is larger than the sum of its proper divisors (655611623).

18163034137 is a wasteful number, since it uses less digits than its factorization.

18163034137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2178383.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 18163034137 in words is "eighteen billion, one hundred sixty-three million, thirty-four thousand, one hundred thirty-seven".

Divisors: 1 31 269 8339 2178083 67520573 585904327 18163034137