Codes, information, symbols...all prevalent themes existing in a multitude of ways in hyperspace.
I have a fond memory of an acid trip a few years ago. I was meditating when all of a sudden gigantic stone gears emerged from the sky of my mind and as I pressed my palms together, they churned...lurching overhead. A metaphorical brilliance.
On the outsides of the gears, were glowing green symbols. Nothing I have ever seen before. Just simple, different, glowing green symbols on stone gears in a dark meditative void.
Not long after I had a dream I was rock climbing the inner walls of a cylindrical place on earth. The dream was filled with tribulations and hardships and finally as I was about to reach the top, I notice the same glowing neon lime green symbol glowing from the rock ... and I let go and fell backwards and woke up.
Also, in regards to numbers:
Hyperspace uses numbers the same way music uses numbers. (And the rest of the entire universe)
For instance, even if there isn't a direct representation of a symbol defining a number like you are describing, Global, there are often numbers to be found in the patterns of hyperspace. This correlates with my theory that musicians have a tendency to remember more aspects of hyperspace than people who aren't used to counting patterns via sensory data. I think there is a hell of a lot to be learned from this and much more exploration needs to be done!
This, I think, is one of the keys that will help us understand hyperspace in the future.