- Source: 183 (number)
183 (one hundred [and] eighty-three) is the natural number following 182 and preceding 184.
In mathematics
183 is a perfect totient number, a number that is equal to the sum of its iterated totients.
Because
183
=
13
2
+
13
+
1
{\displaystyle 183=13^{2}+13+1}
, it is the number of points in a projective plane over the finite field
Z
13
{\displaystyle \mathbb {Z} _{13}}
. 183 is the fourth element of a divisibility sequence
1
,
3
,
13
,
183
,
…
{\displaystyle 1,3,13,183,\dots }
in which the
n
{\displaystyle n}
th number
a
n
{\displaystyle a_{n}}
can be computed as
a
n
=
a
n
−
1
2
+
a
n
−
1
+
1
=
⌊
x
2
n
⌋
,
{\displaystyle a_{n}=a_{n-1}^{2}+a_{n-1}+1={\bigl \lfloor }x^{2^{n}}{\bigr \rfloor },}
for a transcendental number
x
≈
1.38509
{\displaystyle x\approx 1.38509}
. This sequence counts the number of trees of height
≤
n
{\displaystyle \leq n}
in which each node can have at most two children.
There are 183 different semiorders on four labeled elements.
See also
The year AD 183 or 183 BC
List of highways numbered 183
All pages with titles containing 183
References
Kata Kunci Pencarian:
- Kleopatra
- Distrik Amstetten
- Porta (jaringan komputer)
- Shiva (seri televisi)
- Layanan jejaring sosial
- Daftar negara menurut luas wilayah
- Semaglutid
- Yoo Yeon-seok
- Daftar negara menurut PDB (KKB) per kapita
- 183 (number)
- List of highways numbered 183
- 183 (disambiguation)
- U.S. Route 183
- National Highway 183 (India)
- TAKI 183
- 1000 (number)
- Khalid Sheikh Mohammed
- 183 Istria
- Focke-Wulf Ta 183
