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Originally Posted by Tristran
@r6r6r
Seeing that you are into numbers, can you tell a good place to read up about the number 9 and how far it goes when adding up the digits of 9^powers.
So far my program just reached 9^23787 and still the resulting digits of the long number summarizes down to 9.
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I only use MS calculator for my powering.
You may consider the enneagon/nona{9}gon.
See in following link that, of the first single digit numbers, the enneagon as rational internal value of 140 degrees, whereas the hetpta{
7}gon is the only polygon with irrational interior angle of 128.571
3, 4, 6, 8, 9 and 12-a-gons all have interior angles divisible 5, however, the penta{
5}gon is not divisble by #
5.
Penta{
5}gons 108 degrees is divisible by 1,
2, 3, 4, 6, 9, 12, 18, 27, 36 and 54.
2 and
3 are the only
primes there, but 27 is a cubic number i.e. 3*3*3 = 27.
Nine nodal events have 36 relationships.
See this
link n^2 - n / 2 = number of relationships
We have 36 kinds of quarks i.e. 18 kinds of quark and 18 kinds of anti-quark. So who knows if there is any significance there.
#9 is lucky, or unlucky or magic or whatever in various religions/cultures etc....
If I've given it characteristic over the years I cannot recall at moment what that or those were.
r6