The Number 40
Prime Factors of 40=2x2x2x5.
40 can be Partitioned 31185 ways.
40 can be Partitioned 21 times with each term no larger than 2.
40 can be Partitioned 154 times with each term no larger than 3.
40 can be Partitioned 632 times with each term no larger than 4.
40 can be Partitioned 1747 times with each term no larger than 5.
40 is a Octagonal Number.
40 is a Centered 13-gonal Number.
40 is a Pentagonal Pyramidal Number.
40 is an Abundant Number.
The number of equivalent hyperspheres in 5 dimensions which can touch an equivalent hypersphere without any intersections=40.(Kissing Number)
40 is the only number whose letters are in alphabetical order.
The Chemical Element Zirconium has an atomic number of 40.
Bhagavan Sri Ramana Maharshi's "Forty Verses on Reality."
Film: 40 Days and 40 Nights.
Film: The 40 Year Old Virgin.
The Year 40 AD
In the year 40 AD...
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