An irrational number is a number that cannot be expressed as a fraction of two integers. This means that its decimal representation is non-terminating and non-repeating.
Let's evaluate the options:
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52.781654292 - This number is a decimal and seems to terminate at 12 decimal places, which means it is rational.
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-7 - This is an integer and can be expressed as a fraction (-7/1), so it is also rational.
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36363636363636363 - This too is an integer and can similarly be expressed as a fraction (36363636363636363/1), which makes it rational.
Since all the provided options are rational, none of them are irrational. If the objective is to find an irrational number from the list, then there is none.
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