Properties

Label 2-38640-1.1-c1-0-75
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 $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 3-s + 5-s − 7-s + 9-s + 11-s + 4·13-s + 15-s + 6·17-s − 7·19-s − 21-s + 23-s + 25-s + 27-s − 6·29-s − 4·31-s + 33-s − 35-s − 2·37-s + 4·39-s + 9·41-s − 2·43-s + 45-s − 7·47-s + 49-s + 6·51-s + 5·53-s + 55-s + ⋯
L(s)  = 1  + 0.577·3-s + 0.447·5-s − 0.377·7-s + 1/3·9-s + 0.301·11-s + 1.10·13-s + 0.258·15-s + 1.45·17-s − 1.60·19-s − 0.218·21-s + 0.208·23-s + 1/5·25-s + 0.192·27-s − 1.11·29-s − 0.718·31-s + 0.174·33-s − 0.169·35-s − 0.328·37-s + 0.640·39-s + 1.40·41-s − 0.304·43-s + 0.149·45-s − 1.02·47-s + 1/7·49-s + 0.840·51-s + 0.686·53-s + 0.134·55-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: \(1\)
Selberg data: \((2,\ 38640,\ (\ :1/2),\ -1)\)

Particular Values

\(L(1)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{3}{2})\) 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 \( 1 - T + p T^{2} \)
13 \( 1 - 4 T + p T^{2} \)
17 \( 1 - 6 T + p T^{2} \)
19 \( 1 + 7 T + p T^{2} \)
29 \( 1 + 6 T + p T^{2} \)
31 \( 1 + 4 T + p T^{2} \)
37 \( 1 + 2 T + p T^{2} \)
41 \( 1 - 9 T + p T^{2} \)
43 \( 1 + 2 T + p T^{2} \)
47 \( 1 + 7 T + p T^{2} \)
53 \( 1 - 5 T + p T^{2} \)
59 \( 1 + 7 T + p T^{2} \)
61 \( 1 + 7 T + p T^{2} \)
67 \( 1 - 2 T + p T^{2} \)
71 \( 1 + 4 T + p T^{2} \)
73 \( 1 + 10 T + p T^{2} \)
79 \( 1 - 6 T + p T^{2} \)
83 \( 1 + 16 T + p T^{2} \)
89 \( 1 - 4 T + p T^{2} \)
97 \( 1 + 10 T + p T^{2} \)
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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

−14.93511576479204, −14.56039214438602, −14.14528474572772, −13.46034490674110, −13.00196476447760, −12.72210071557633, −12.03951375447487, −11.38722209655384, −10.63501804188764, −10.50556075953622, −9.654150265823990, −9.214698225317964, −8.821576115729321, −8.100215173497250, −7.709536171361504, −6.895569850629071, −6.426968494536313, −5.770714073779048, −5.386647485341800, −4.307814741239914, −3.907805732926482, −3.241779449563872, −2.634572503457242, −1.708818998619257, −1.265768843119586, 0, 1.265768843119586, 1.708818998619257, 2.634572503457242, 3.241779449563872, 3.907805732926482, 4.307814741239914, 5.386647485341800, 5.770714073779048, 6.426968494536313, 6.895569850629071, 7.709536171361504, 8.100215173497250, 8.821576115729321, 9.214698225317964, 9.654150265823990, 10.50556075953622, 10.63501804188764, 11.38722209655384, 12.03951375447487, 12.72210071557633, 13.00196476447760, 13.46034490674110, 14.14528474572772, 14.56039214438602, 14.93511576479204

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