Properties

Label 2-38640-1.1-c1-0-31
Degree $2$
Conductor $38640$
Sign $1$
Analytic cond. $308.541$
Root an. cond. $17.5653$
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  + 3-s + 5-s + 7-s + 9-s + 2·13-s + 15-s + 2·17-s + 21-s − 23-s + 25-s + 27-s − 10·29-s + 4·31-s + 35-s + 6·37-s + 2·39-s + 10·41-s + 12·43-s + 45-s + 49-s + 2·51-s − 6·53-s − 4·59-s + 14·61-s + 63-s + 2·65-s + 12·67-s + ⋯
L(s)  = 1  + 0.577·3-s + 0.447·5-s + 0.377·7-s + 1/3·9-s + 0.554·13-s + 0.258·15-s + 0.485·17-s + 0.218·21-s − 0.208·23-s + 1/5·25-s + 0.192·27-s − 1.85·29-s + 0.718·31-s + 0.169·35-s + 0.986·37-s + 0.320·39-s + 1.56·41-s + 1.82·43-s + 0.149·45-s + 1/7·49-s + 0.280·51-s − 0.824·53-s − 0.520·59-s + 1.79·61-s + 0.125·63-s + 0.248·65-s + 1.46·67-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 38640 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 38640 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(38640\)    =    \(2^{4} \cdot 3 \cdot 5 \cdot 7 \cdot 23\)
Sign: $1$
Analytic conductor: \(308.541\)
Root analytic conductor: \(17.5653\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 38640,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(4.135129781\)
\(L(\frac12)\) \(\approx\) \(4.135129781\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
3 \( 1 - T \)
5 \( 1 - T \)
7 \( 1 - T \)
23 \( 1 + T \)
good11 \( 1 + p T^{2} \)
13 \( 1 - 2 T + p T^{2} \)
17 \( 1 - 2 T + p T^{2} \)
19 \( 1 + p T^{2} \)
29 \( 1 + 10 T + p T^{2} \)
31 \( 1 - 4 T + p T^{2} \)
37 \( 1 - 6 T + p T^{2} \)
41 \( 1 - 10 T + p T^{2} \)
43 \( 1 - 12 T + p T^{2} \)
47 \( 1 + p T^{2} \)
53 \( 1 + 6 T + p T^{2} \)
59 \( 1 + 4 T + p T^{2} \)
61 \( 1 - 14 T + p T^{2} \)
67 \( 1 - 12 T + p T^{2} \)
71 \( 1 - 12 T + p T^{2} \)
73 \( 1 - 14 T + p T^{2} \)
79 \( 1 + p T^{2} \)
83 \( 1 + 12 T + p T^{2} \)
89 \( 1 + 6 T + p T^{2} \)
97 \( 1 + 18 T + p T^{2} \)
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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

−14.62030040527762, −14.34546993499306, −13.89616832175642, −13.31310031541891, −12.66725659276410, −12.54195709318941, −11.55779200997102, −11.03732372815442, −10.79490240122463, −9.829253363519792, −9.514418278956836, −9.125496561556231, −8.223340335146920, −8.017356110147289, −7.361482830424264, −6.728612755351271, −5.989690865513487, −5.581893556606060, −4.895006247639748, −3.962864707542766, −3.816795563621276, −2.702758439695906, −2.324629655111964, −1.446765598480879, −0.7611146807439646, 0.7611146807439646, 1.446765598480879, 2.324629655111964, 2.702758439695906, 3.816795563621276, 3.962864707542766, 4.895006247639748, 5.581893556606060, 5.989690865513487, 6.728612755351271, 7.361482830424264, 8.017356110147289, 8.223340335146920, 9.125496561556231, 9.514418278956836, 9.829253363519792, 10.79490240122463, 11.03732372815442, 11.55779200997102, 12.54195709318941, 12.66725659276410, 13.31310031541891, 13.89616832175642, 14.34546993499306, 14.62030040527762

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