Properties

Label 2-20216-1.1-c1-0-1
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  − 2·3-s − 4·5-s + 7-s + 9-s + 8·15-s − 2·17-s − 2·21-s + 8·23-s + 11·25-s + 4·27-s − 2·29-s − 4·31-s − 4·35-s + 6·37-s + 2·41-s + 8·43-s − 4·45-s − 4·47-s + 49-s + 4·51-s + 10·53-s − 6·59-s + 4·61-s + 63-s + 12·67-s − 16·69-s − 14·73-s + ⋯
L(s)  = 1  − 1.15·3-s − 1.78·5-s + 0.377·7-s + 1/3·9-s + 2.06·15-s − 0.485·17-s − 0.436·21-s + 1.66·23-s + 11/5·25-s + 0.769·27-s − 0.371·29-s − 0.718·31-s − 0.676·35-s + 0.986·37-s + 0.312·41-s + 1.21·43-s − 0.596·45-s − 0.583·47-s + 1/7·49-s + 0.560·51-s + 1.37·53-s − 0.781·59-s + 0.512·61-s + 0.125·63-s + 1.46·67-s − 1.92·69-s − 1.63·73-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

\(L(1)\) \(\approx\) \(0.7738679515\)
\(L(\frac12)\) \(\approx\) \(0.7738679515\)
\(L(\frac{3}{2})\) 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 \( 1 + 2 T + p T^{2} \)
5 \( 1 + 4 T + p T^{2} \)
11 \( 1 + p T^{2} \)
13 \( 1 + p T^{2} \)
17 \( 1 + 2 T + p T^{2} \)
23 \( 1 - 8 T + p T^{2} \)
29 \( 1 + 2 T + p T^{2} \)
31 \( 1 + 4 T + p T^{2} \)
37 \( 1 - 6 T + p T^{2} \)
41 \( 1 - 2 T + p T^{2} \)
43 \( 1 - 8 T + p T^{2} \)
47 \( 1 + 4 T + p T^{2} \)
53 \( 1 - 10 T + p T^{2} \)
59 \( 1 + 6 T + p T^{2} \)
61 \( 1 - 4 T + p T^{2} \)
67 \( 1 - 12 T + p T^{2} \)
71 \( 1 + p T^{2} \)
73 \( 1 + 14 T + p T^{2} \)
79 \( 1 - 8 T + p T^{2} \)
83 \( 1 - 6 T + p T^{2} \)
89 \( 1 + 10 T + p T^{2} \)
97 \( 1 - 2 T + p T^{2} \)
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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

−15.78108158381509, −15.13376063516763, −14.76700261351364, −14.21393879157704, −13.14803199736177, −12.81072419745435, −12.20164732096089, −11.65692246477082, −11.27132798304633, −10.94112522915804, −10.49444275228607, −9.437823400910320, −8.804989450773321, −8.324383415335091, −7.515586756347223, −7.221600365435100, −6.558436676475240, −5.794962777770801, −5.087856667142559, −4.612717630490790, −4.013319185875995, −3.291501565731642, −2.461152809923141, −1.090006199790433, −0.4740113624676991, 0.4740113624676991, 1.090006199790433, 2.461152809923141, 3.291501565731642, 4.013319185875995, 4.612717630490790, 5.087856667142559, 5.794962777770801, 6.558436676475240, 7.221600365435100, 7.515586756347223, 8.324383415335091, 8.804989450773321, 9.437823400910320, 10.49444275228607, 10.94112522915804, 11.27132798304633, 11.65692246477082, 12.20164732096089, 12.81072419745435, 13.14803199736177, 14.21393879157704, 14.76700261351364, 15.13376063516763, 15.78108158381509

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