Properties

Label 2-69-1.1-c7-0-21
Degree $2$
Conductor $69$
Sign $-1$
Analytic cond. $21.5545$
Root an. cond. $4.64268$
Motivic weight $7$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 3.35·2-s + 27·3-s − 116.·4-s + 0.849·5-s + 90.4·6-s + 405.·7-s − 820.·8-s + 729·9-s + 2.84·10-s + 2.66e3·11-s − 3.15e3·12-s − 9.50e3·13-s + 1.35e3·14-s + 22.9·15-s + 1.21e4·16-s − 3.61e4·17-s + 2.44e3·18-s − 3.58e4·19-s − 99.1·20-s + 1.09e4·21-s + 8.92e3·22-s − 1.21e4·23-s − 2.21e4·24-s − 7.81e4·25-s − 3.18e4·26-s + 1.96e4·27-s − 4.73e4·28-s + ⋯
L(s)  = 1  + 0.296·2-s + 0.577·3-s − 0.912·4-s + 0.00303·5-s + 0.171·6-s + 0.447·7-s − 0.566·8-s + 0.333·9-s + 0.000899·10-s + 0.603·11-s − 0.526·12-s − 1.20·13-s + 0.132·14-s + 0.00175·15-s + 0.744·16-s − 1.78·17-s + 0.0987·18-s − 1.19·19-s − 0.00277·20-s + 0.258·21-s + 0.178·22-s − 0.208·23-s − 0.327·24-s − 0.999·25-s − 0.355·26-s + 0.192·27-s − 0.407·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 69 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(8-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 69 ^{s/2} \, \Gamma_{\C}(s+7/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(69\)    =    \(3 \cdot 23\)
Sign: $-1$
Analytic conductor: \(21.5545\)
Root analytic conductor: \(4.64268\)
Motivic weight: \(7\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 69,\ (\ :7/2),\ -1)\)

Particular Values

\(L(4)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{9}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 - 27T \)
23 \( 1 + 1.21e4T \)
good2 \( 1 - 3.35T + 128T^{2} \)
5 \( 1 - 0.849T + 7.81e4T^{2} \)
7 \( 1 - 405.T + 8.23e5T^{2} \)
11 \( 1 - 2.66e3T + 1.94e7T^{2} \)
13 \( 1 + 9.50e3T + 6.27e7T^{2} \)
17 \( 1 + 3.61e4T + 4.10e8T^{2} \)
19 \( 1 + 3.58e4T + 8.93e8T^{2} \)
29 \( 1 - 1.28e5T + 1.72e10T^{2} \)
31 \( 1 + 3.26e4T + 2.75e10T^{2} \)
37 \( 1 + 5.83e5T + 9.49e10T^{2} \)
41 \( 1 + 7.56e5T + 1.94e11T^{2} \)
43 \( 1 - 7.69e5T + 2.71e11T^{2} \)
47 \( 1 + 8.47e4T + 5.06e11T^{2} \)
53 \( 1 + 5.25e4T + 1.17e12T^{2} \)
59 \( 1 - 2.26e6T + 2.48e12T^{2} \)
61 \( 1 - 1.62e6T + 3.14e12T^{2} \)
67 \( 1 - 2.11e6T + 6.06e12T^{2} \)
71 \( 1 + 4.91e6T + 9.09e12T^{2} \)
73 \( 1 - 3.45e6T + 1.10e13T^{2} \)
79 \( 1 - 2.91e6T + 1.92e13T^{2} \)
83 \( 1 - 1.88e6T + 2.71e13T^{2} \)
89 \( 1 + 2.34e5T + 4.42e13T^{2} \)
97 \( 1 - 1.52e7T + 8.07e13T^{2} \)
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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

−12.93382497889186957636814229626, −11.85698559347632378488250933444, −10.28184341055251390584020800570, −9.101598037843497637562214000524, −8.291144267567985855638366146232, −6.71436215027444129279417425193, −4.92776973769270564030534028978, −3.95000786673034120206117976458, −2.13329574007374215183964643362, 0, 2.13329574007374215183964643362, 3.95000786673034120206117976458, 4.92776973769270564030534028978, 6.71436215027444129279417425193, 8.291144267567985855638366146232, 9.101598037843497637562214000524, 10.28184341055251390584020800570, 11.85698559347632378488250933444, 12.93382497889186957636814229626

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