Properties

Label 2-20216-1.1-c1-0-0
Degree $2$
Conductor $20216$
Sign $1$
Analytic cond. $161.425$
Root an. cond. $12.7053$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 2·5-s − 7-s − 3·9-s − 4·11-s − 2·13-s − 6·17-s − 25-s − 6·29-s − 8·31-s − 2·35-s + 2·37-s − 2·41-s − 4·43-s − 6·45-s − 8·47-s + 49-s − 6·53-s − 8·55-s − 6·61-s + 3·63-s − 4·65-s + 4·67-s + 8·71-s + 10·73-s + 4·77-s − 16·79-s + 9·81-s + ⋯
L(s)  = 1  + 0.894·5-s − 0.377·7-s − 9-s − 1.20·11-s − 0.554·13-s − 1.45·17-s − 1/5·25-s − 1.11·29-s − 1.43·31-s − 0.338·35-s + 0.328·37-s − 0.312·41-s − 0.609·43-s − 0.894·45-s − 1.16·47-s + 1/7·49-s − 0.824·53-s − 1.07·55-s − 0.768·61-s + 0.377·63-s − 0.496·65-s + 0.488·67-s + 0.949·71-s + 1.17·73-s + 0.455·77-s − 1.80·79-s + 81-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 20216 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 20216 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(20216\)    =    \(2^{3} \cdot 7 \cdot 19^{2}\)
Sign: $1$
Analytic conductor: \(161.425\)
Root analytic conductor: \(12.7053\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 20216,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(0.5267870366\)
\(L(\frac12)\) \(\approx\) \(0.5267870366\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
7 \( 1 + T \)
19 \( 1 \)
good3 \( 1 + p T^{2} \)
5 \( 1 - 2 T + p T^{2} \)
11 \( 1 + 4 T + p T^{2} \)
13 \( 1 + 2 T + p T^{2} \)
17 \( 1 + 6 T + p T^{2} \)
23 \( 1 + p T^{2} \)
29 \( 1 + 6 T + p T^{2} \)
31 \( 1 + 8 T + p T^{2} \)
37 \( 1 - 2 T + p T^{2} \)
41 \( 1 + 2 T + p T^{2} \)
43 \( 1 + 4 T + p T^{2} \)
47 \( 1 + 8 T + p T^{2} \)
53 \( 1 + 6 T + p T^{2} \)
59 \( 1 + p T^{2} \)
61 \( 1 + 6 T + p T^{2} \)
67 \( 1 - 4 T + p T^{2} \)
71 \( 1 - 8 T + p T^{2} \)
73 \( 1 - 10 T + p T^{2} \)
79 \( 1 + 16 T + p T^{2} \)
83 \( 1 - 8 T + p T^{2} \)
89 \( 1 - 6 T + p T^{2} \)
97 \( 1 - 6 T + p T^{2} \)
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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

−15.57670645977811, −15.14266196060220, −14.48983239353678, −14.02003719719551, −13.31733251348600, −13.07052654004478, −12.59029095893272, −11.68721574754380, −11.13482804567237, −10.77122850550435, −9.994889096072198, −9.541842258964907, −9.002070238773437, −8.411605898863995, −7.706379152093886, −7.133057276547134, −6.290124298844007, −5.938508305791338, −5.159107279082855, −4.846457737199814, −3.704471537134639, −3.042875665701969, −2.216950524040245, −1.926045745824907, −0.2704923647878087, 0.2704923647878087, 1.926045745824907, 2.216950524040245, 3.042875665701969, 3.704471537134639, 4.846457737199814, 5.159107279082855, 5.938508305791338, 6.290124298844007, 7.133057276547134, 7.706379152093886, 8.411605898863995, 9.002070238773437, 9.541842258964907, 9.994889096072198, 10.77122850550435, 11.13482804567237, 11.68721574754380, 12.59029095893272, 13.07052654004478, 13.31733251348600, 14.02003719719551, 14.48983239353678, 15.14266196060220, 15.57670645977811

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