Properties

Label 2-1620-20.19-c0-0-7
Degree $2$
Conductor $1620$
Sign $1$
Analytic cond. $0.808485$
Root an. cond. $0.899158$
Motivic weight $0$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 2-s + 4-s + 5-s − 7-s + 8-s + 10-s − 14-s + 16-s + 20-s − 23-s + 25-s − 28-s − 29-s + 32-s − 35-s + 40-s − 41-s + 2·43-s − 46-s − 47-s + 50-s − 56-s − 58-s − 61-s + 64-s − 67-s − 70-s + ⋯
L(s)  = 1  + 2-s + 4-s + 5-s − 7-s + 8-s + 10-s − 14-s + 16-s + 20-s − 23-s + 25-s − 28-s − 29-s + 32-s − 35-s + 40-s − 41-s + 2·43-s − 46-s − 47-s + 50-s − 56-s − 58-s − 61-s + 64-s − 67-s − 70-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1620 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1620 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1620\)    =    \(2^{2} \cdot 3^{4} \cdot 5\)
Sign: $1$
Analytic conductor: \(0.808485\)
Root analytic conductor: \(0.899158\)
Motivic weight: \(0\)
Rational: yes
Arithmetic: yes
Character: $\chi_{1620} (1459, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 1620,\ (\ :0),\ 1)\)

Particular Values

\(L(\frac{1}{2})\) \(\approx\) \(2.232959799\)
\(L(\frac12)\) \(\approx\) \(2.232959799\)
\(L(1)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 - T \)
3 \( 1 \)
5 \( 1 - T \)
good7 \( 1 + T + T^{2} \)
11 \( ( 1 - T )( 1 + T ) \)
13 \( ( 1 - T )( 1 + T ) \)
17 \( ( 1 - T )( 1 + T ) \)
19 \( ( 1 - T )( 1 + T ) \)
23 \( 1 + T + T^{2} \)
29 \( 1 + T + T^{2} \)
31 \( ( 1 - T )( 1 + T ) \)
37 \( ( 1 - T )( 1 + T ) \)
41 \( 1 + T + T^{2} \)
43 \( ( 1 - T )^{2} \)
47 \( 1 + T + T^{2} \)
53 \( ( 1 - T )( 1 + T ) \)
59 \( ( 1 - T )( 1 + T ) \)
61 \( 1 + T + T^{2} \)
67 \( 1 + T + T^{2} \)
71 \( ( 1 - T )( 1 + T ) \)
73 \( ( 1 - T )( 1 + T ) \)
79 \( ( 1 - T )( 1 + T ) \)
83 \( 1 + T + T^{2} \)
89 \( 1 + T + T^{2} \)
97 \( ( 1 - T )( 1 + T ) \)
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   \(L(s) = \displaystyle\prod_p \ \prod_{j=1}^{2} (1 - \alpha_{j,p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−9.770066527798407030641800202621, −8.948784857459134369409836100195, −7.75213059564737046044151089250, −6.89271979896496467607141958348, −6.12670422834020255834456518706, −5.68049522650013154759787686723, −4.63533792276988180584356757998, −3.60722555458245745861159199434, −2.73180554100524686081832634562, −1.72472024463858295361250271996, 1.72472024463858295361250271996, 2.73180554100524686081832634562, 3.60722555458245745861159199434, 4.63533792276988180584356757998, 5.68049522650013154759787686723, 6.12670422834020255834456518706, 6.89271979896496467607141958348, 7.75213059564737046044151089250, 8.948784857459134369409836100195, 9.770066527798407030641800202621

Graph of the $Z$-function along the critical line