Properties

Label 2-15680-1.1-c1-0-67
Degree $2$
Conductor $15680$
Sign $1$
Analytic cond. $125.205$
Root an. cond. $11.1895$
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  + 3·3-s + 5-s + 6·9-s + 2·11-s + 6·13-s + 3·15-s + 2·17-s − 9·23-s + 25-s + 9·27-s − 3·29-s + 2·31-s + 6·33-s − 8·37-s + 18·39-s + 5·41-s − 43-s + 6·45-s + 8·47-s + 6·51-s − 4·53-s + 2·55-s + 8·59-s − 7·61-s + 6·65-s + 3·67-s − 27·69-s + ⋯
L(s)  = 1  + 1.73·3-s + 0.447·5-s + 2·9-s + 0.603·11-s + 1.66·13-s + 0.774·15-s + 0.485·17-s − 1.87·23-s + 1/5·25-s + 1.73·27-s − 0.557·29-s + 0.359·31-s + 1.04·33-s − 1.31·37-s + 2.88·39-s + 0.780·41-s − 0.152·43-s + 0.894·45-s + 1.16·47-s + 0.840·51-s − 0.549·53-s + 0.269·55-s + 1.04·59-s − 0.896·61-s + 0.744·65-s + 0.366·67-s − 3.25·69-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 15680 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 15680 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(15680\)    =    \(2^{6} \cdot 5 \cdot 7^{2}\)
Sign: $1$
Analytic conductor: \(125.205\)
Root analytic conductor: \(11.1895\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 15680,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(5.937524695\)
\(L(\frac12)\) \(\approx\) \(5.937524695\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
5 \( 1 - T \)
7 \( 1 \)
good3 \( 1 - p T + p T^{2} \)
11 \( 1 - 2 T + p T^{2} \)
13 \( 1 - 6 T + p T^{2} \)
17 \( 1 - 2 T + p T^{2} \)
19 \( 1 + p T^{2} \)
23 \( 1 + 9 T + p T^{2} \)
29 \( 1 + 3 T + p T^{2} \)
31 \( 1 - 2 T + p T^{2} \)
37 \( 1 + 8 T + p T^{2} \)
41 \( 1 - 5 T + p T^{2} \)
43 \( 1 + T + p T^{2} \)
47 \( 1 - 8 T + p T^{2} \)
53 \( 1 + 4 T + p T^{2} \)
59 \( 1 - 8 T + p T^{2} \)
61 \( 1 + 7 T + p T^{2} \)
67 \( 1 - 3 T + p T^{2} \)
71 \( 1 - 8 T + p T^{2} \)
73 \( 1 - 14 T + p T^{2} \)
79 \( 1 - 4 T + p T^{2} \)
83 \( 1 - T + p T^{2} \)
89 \( 1 - 13 T + p T^{2} \)
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

−15.80562523762995, −15.46117361556143, −14.73932370560332, −14.17975065462915, −13.76230026262328, −13.63560123834870, −12.74386562020122, −12.31194541456828, −11.50857595247741, −10.75293681186930, −10.15087937438910, −9.616112268941134, −9.018816957455804, −8.629365991337945, −8.006388031609608, −7.579539953597814, −6.650583091145001, −6.159751186914054, −5.402154311450890, −4.309229186131071, −3.683318191782294, −3.437394739727868, −2.342277385507208, −1.830417081970310, −1.029699076602034, 1.029699076602034, 1.830417081970310, 2.342277385507208, 3.437394739727868, 3.683318191782294, 4.309229186131071, 5.402154311450890, 6.159751186914054, 6.650583091145001, 7.579539953597814, 8.006388031609608, 8.629365991337945, 9.018816957455804, 9.616112268941134, 10.15087937438910, 10.75293681186930, 11.50857595247741, 12.31194541456828, 12.74386562020122, 13.63560123834870, 13.76230026262328, 14.17975065462915, 14.73932370560332, 15.46117361556143, 15.80562523762995

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