Anonymous user
Talk:Zumkeller numbers: Difference between revisions
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→Where to find count of Zumkeller to verify solutions.Is there a constant ratio 0.228...?: new timings
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== Where to find count of Zumkeller to verify solutions.Is there a constant ratio 0.228...? ==
I have modified the program to run up to 1E9.On AMD 2200G Linux 64-bit
<pre>
Start 1 at 1
100000000 tested found 22879037 ratio 0.2287904 recursion 1.101 runtime 9.777 s
200000000 tested found 45744040 ratio 0.2287202 recursion 1.116 runtime 10.640 s
300000000 tested found 68603020 ratio 0.2286767 recursion 1.171 runtime 11.159 s
400000000 tested found 91458844 ratio 0.2286471 recursion 1.230 runtime 11.506 s
500000000 tested found 114316149 ratio 0.2286323 recursion 1.283 runtime 11.770 s
600000000 tested found 137176153 ratio 0.2286269 recursion 1.332 runtime 20.701 s
700000000 tested found 160037821 ratio 0.2286255 recursion 2.834 runtime 22.288 s
800000000 tested found 182899550 ratio 0.2286244 recursion 2.786 runtime 13.064 s
900000000 tested found 205760422 ratio 0.2286227 recursion 2.691 runtime 12.682 s
1000000000 tested found 228620760 ratio 0.2286208 recursion 2.620 runtime 12.842 s
total 136s = 2m16s (
</pre>
[[user Horst.h|Horst.h]] 06:28, 20 June 2021 (UTC)
== Cheating odd no 5 zumkeller numbers ==
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