Properties

Label 2-690-23.8-c1-0-4
Degree $2$
Conductor $690$
Sign $0.980 + 0.196i$
Analytic cond. $5.50967$
Root an. cond. $2.34727$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (0.142 − 0.989i)2-s + (−0.415 − 0.909i)3-s + (−0.959 − 0.281i)4-s + (−0.654 − 0.755i)5-s + (−0.959 + 0.281i)6-s + (4.30 + 2.76i)7-s + (−0.415 + 0.909i)8-s + (−0.654 + 0.755i)9-s + (−0.841 + 0.540i)10-s + (0.877 + 6.10i)11-s + (0.142 + 0.989i)12-s + (−1.50 + 0.967i)13-s + (3.34 − 3.86i)14-s + (−0.415 + 0.909i)15-s + (0.841 + 0.540i)16-s + (−1.59 + 0.468i)17-s + ⋯
L(s)  = 1  + (0.100 − 0.699i)2-s + (−0.239 − 0.525i)3-s + (−0.479 − 0.140i)4-s + (−0.292 − 0.337i)5-s + (−0.391 + 0.115i)6-s + (1.62 + 1.04i)7-s + (−0.146 + 0.321i)8-s + (−0.218 + 0.251i)9-s + (−0.266 + 0.170i)10-s + (0.264 + 1.84i)11-s + (0.0410 + 0.285i)12-s + (−0.417 + 0.268i)13-s + (0.895 − 1.03i)14-s + (−0.107 + 0.234i)15-s + (0.210 + 0.135i)16-s + (−0.386 + 0.113i)17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 690 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.980 + 0.196i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 690 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.980 + 0.196i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(690\)    =    \(2 \cdot 3 \cdot 5 \cdot 23\)
Sign: $0.980 + 0.196i$
Analytic conductor: \(5.50967\)
Root analytic conductor: \(2.34727\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{690} (31, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 690,\ (\ :1/2),\ 0.980 + 0.196i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.45760 - 0.144604i\)
\(L(\frac12)\) \(\approx\) \(1.45760 - 0.144604i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + (-0.142 + 0.989i)T \)
3 \( 1 + (0.415 + 0.909i)T \)
5 \( 1 + (0.654 + 0.755i)T \)
23 \( 1 + (1.76 - 4.45i)T \)
good7 \( 1 + (-4.30 - 2.76i)T + (2.90 + 6.36i)T^{2} \)
11 \( 1 + (-0.877 - 6.10i)T + (-10.5 + 3.09i)T^{2} \)
13 \( 1 + (1.50 - 0.967i)T + (5.40 - 11.8i)T^{2} \)
17 \( 1 + (1.59 - 0.468i)T + (14.3 - 9.19i)T^{2} \)
19 \( 1 + (-6.35 - 1.86i)T + (15.9 + 10.2i)T^{2} \)
29 \( 1 + (4.10 - 1.20i)T + (24.3 - 15.6i)T^{2} \)
31 \( 1 + (0.672 - 1.47i)T + (-20.3 - 23.4i)T^{2} \)
37 \( 1 + (-4.51 + 5.20i)T + (-5.26 - 36.6i)T^{2} \)
41 \( 1 + (5.47 + 6.31i)T + (-5.83 + 40.5i)T^{2} \)
43 \( 1 + (5.39 + 11.8i)T + (-28.1 + 32.4i)T^{2} \)
47 \( 1 - 9.71T + 47T^{2} \)
53 \( 1 + (-3.12 - 2.00i)T + (22.0 + 48.2i)T^{2} \)
59 \( 1 + (5.44 - 3.50i)T + (24.5 - 53.6i)T^{2} \)
61 \( 1 + (-2.76 + 6.05i)T + (-39.9 - 46.1i)T^{2} \)
67 \( 1 + (0.166 - 1.15i)T + (-64.2 - 18.8i)T^{2} \)
71 \( 1 + (-0.910 + 6.33i)T + (-68.1 - 20.0i)T^{2} \)
73 \( 1 + (-3.56 - 1.04i)T + (61.4 + 39.4i)T^{2} \)
79 \( 1 + (4.73 - 3.03i)T + (32.8 - 71.8i)T^{2} \)
83 \( 1 + (-4.22 + 4.87i)T + (-11.8 - 82.1i)T^{2} \)
89 \( 1 + (-1.04 - 2.28i)T + (-58.2 + 67.2i)T^{2} \)
97 \( 1 + (-3.42 - 3.95i)T + (-13.8 + 96.0i)T^{2} \)
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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

−10.63831401835796692882207400971, −9.503909414444638647227979531177, −8.868658472352994648757565871522, −7.75119689431081362197253368200, −7.24105371021856741482227710725, −5.50178832637427631714457260650, −5.05242553067967448861608272367, −4.00449645436042949540124885719, −2.17415701364764494666104968184, −1.62094060528447923285606473588, 0.856567860404744621585609249379, 3.15243492228200526875738293104, 4.23486214477877550713321094097, 4.99799537659598607830649970535, 5.95045781264832071277018250739, 7.04869678540349687598679944153, 7.962453003587465508678184124896, 8.437891268264521646918273525755, 9.626280274294834092280011389210, 10.63156411501736276816398681452

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