The Number 20: Properties and Meanings
Prime Factors of
20=
2x
2x
5.
20 can be
Partitioned in
627 ways.
20 can be
Partitioned 11 times with each term no larger than
2
20 can be
Partitioned 44 times with each term no larger than
3
20 can be
Partitioned 108 times with each term no larger than
4
20 can be
Partitioned 192 times with each term no larger than
5
20 can be
Partitioned 282 times with each term no larger than
6
20 can be
Partitioned 364 times with each term no larger than
7
20 can be
Partitioned 434 times with each term no larger than
8
20 can be
Partitioned 488 times with each term no larger than
9
20 can be
Partitioned 530 times with each term no larger than
10
20 can be
Partitioned 560 times with each term no larger than
11
20 can be
Partitioned 582 times with each term no larger than
12
20 can be
Partitioned 597 times with each term no larger than
13
20 can be
Partitioned 608 times with each term no larger than
14
20 can be
Partitioned 615 times with each term no larger than
15
20 can be
Partitioned 620 times with each term no larger than
16
20 can be
Partitioned 623 times with each term no larger than
17
20 can be
Partitioned 625 times with each term no larger than
18
20 can be
Partitioned 626 times with each term no larger than
19
20 is the number of rooted trees with
6 vertices.
20 is an
Abundant Number.
20=
2 +
4 +
6 +
8
20=
1 +
3 +
6 +
10.
20 is a
Tetrahedral Number.
20 is the total number of parts in all
Partitions of
5.
The Dodecahedron is a
Platonic Solid with
20 Vertices.
The Icosahedron is a
Platonic Solid with
20 Faces.
The
Chemical Element Calcium has an atomic number of
20.
Number of characters of the alphabet of bards.
Mathematical base (vigesimal numeration) in which worked the Gallic and the Mayas.
One month in the religious Mayan calendar contained
twenty days.
In
Humans: the
20 amino acids.
20 Massalia is a large and fairly bright Main belt asteroid.
The Year 20 AD
In the year
20 AD Hillel the Elder, Talmudic scholar, died.
In the year
20 AD Tiberias was built on the Sea of Galilee by Herod Antipas, in honour of Tiberius.