The cache is of course not at the co-ordinates above, although they do show the name of a famous mathematician and polymath who may give you inspiration. As you are all obsessed with numbers, the next bit should be easy.
Allocate the ten digits 0 through 9 to the ten letters A through K (Ignoring I).
The Cache can be found at : N51 1 [A + B] . C D E W000 4 [F - G] . H J K
Where:
A = Magic
B = Nada + Nix + Zilch + Null + Diddly Squat
C = Composite
D = Happy go Lucky
E = Fortunate
F = 11, 14, ?, 12, 5
G = Good and Safe
H = Perfect
J = Untouchable
K = It’s odd that it’s even!