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18144750805007 = 311793269913643
BaseRepresentation
bin1000010000000101001110…
…11011010010000000001111
32101020121202212210102201212
410020002213123102000033
54334240422201230012
6102331330005125035
73551625561040361
oct410024733220017
971217685712655
1018144750805007
115866166884522
1220506a83b977b
13a18072950098
1446a2d3d50d31
15216ebec0ab22
hex1080a76d200f

18144750805007 has 8 divisors (see below), whose sum is σ = 18834702589440. Its totient is φ = 17461338848280.

The previous prime is 18144750804997. The next prime is 18144750805057. The reversal of 18144750805007 is 70050805744181.

It is a happy number.

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 18144750805007 - 228 = 18144482369551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18144750805057) 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, 1634951273 + ... + 1634962370.

It is an arithmetic number, because the mean of its divisors is an integer number (2354337823680).

Almost surely, 218144750805007 is an apocalyptic number.

18144750805007 is a deficient number, since it is larger than the sum of its proper divisors (689951784433).

18144750805007 is a wasteful number, since it uses less digits than its factorization.

18144750805007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3269913853.

The product of its (nonzero) digits is 1254400, while the sum is 50.

The spelling of 18144750805007 in words is "eighteen trillion, one hundred forty-four billion, seven hundred fifty million, eight hundred five thousand, seven".

Divisors: 1 31 179 5549 3269913643 101367322933 585314542097 18144750805007