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The Number 31: Properties and Meanings
31 is a
Prime Number.
31 is a
Mersenne Number.
31 is a
Centered Triangular Number.
31 is a
Centered Pentagonal Number.
31 is a
Centered Decagonal Number.
There are only
31 numbers which cannot be expressed as the sum of distinct squares.
31 is the number of moves required in a Tower of Hanoi Puzzle containing
5 discs.
31 can be
Partitioned 6842 ways.
31 can be
Partitioned 16 times with each term no larger than
2
31 can be
Partitioned 96 times with each term no larger than
3
31 can be
Partitioned 321 times with each term no larger than
4
31 can be
Partitioned 748 times with each term no larger than
5
31 can be
Partitioned 1360 times with each term no larger than
6
The number of regular polygons with an odd number of sides that can be constructed with straightedge and compass =
31.
The
Chemical Element Gallium has an atomic number of
31.
The
Chemical Element Phosphorus has one
Stable Isotope. It has
31 neutrons.
Pradjapati created the universe by articulating the odd numbers from
1 to
31, according to the Vajasaneya Samhita - white Yajur.
In Buddhism, there are
31 planes of existence.
The Year 31 AD
In the year
31 AD Musonius Rufus, Roman philosopher was born.
In the year
31 AD Saint Stephen died, by stoning.