Determine f(1789) | Australian Maths Olympiad 1989
Let f(n) be defined for positive integers n. It is known that:
ff(n) = 4n + 9 for all positive intergs n, and
f(2^k) = 2^(k+1) + 3 for all non-negative intgers k.
Determine f(1789).
Australian Mathematical Olympiad - 1989, Problem 7.
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