Properties

Label 2-686-49.32-c1-0-22
Degree $2$
Conductor $686$
Sign $-0.456 + 0.889i$
Analytic cond. $5.47773$
Root an. cond. $2.34045$
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  + (−0.0747 − 0.997i)2-s + (0.702 + 0.216i)3-s + (−0.988 + 0.149i)4-s + (2.03 − 1.88i)5-s + (0.163 − 0.717i)6-s + (0.222 + 0.974i)8-s + (−2.03 − 1.38i)9-s + (−2.03 − 1.88i)10-s + (2.29 − 1.56i)11-s + (−0.727 − 0.109i)12-s + (−3.14 − 1.51i)13-s + (1.83 − 0.885i)15-s + (0.955 − 0.294i)16-s + (−1.60 − 4.08i)17-s + (−1.22 + 2.12i)18-s + (2.26 + 3.92i)19-s + ⋯
L(s)  = 1  + (−0.0528 − 0.705i)2-s + (0.405 + 0.125i)3-s + (−0.494 + 0.0745i)4-s + (0.909 − 0.843i)5-s + (0.0668 − 0.292i)6-s + (0.0786 + 0.344i)8-s + (−0.677 − 0.461i)9-s + (−0.642 − 0.596i)10-s + (0.691 − 0.471i)11-s + (−0.209 − 0.0316i)12-s + (−0.872 − 0.419i)13-s + (0.474 − 0.228i)15-s + (0.238 − 0.0736i)16-s + (−0.389 − 0.991i)17-s + (−0.289 + 0.501i)18-s + (0.520 + 0.901i)19-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 686 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.456 + 0.889i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 686 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (-0.456 + 0.889i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(686\)    =    \(2 \cdot 7^{3}\)
Sign: $-0.456 + 0.889i$
Analytic conductor: \(5.47773\)
Root analytic conductor: \(2.34045\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{686} (459, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 686,\ (\ :1/2),\ -0.456 + 0.889i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.864338 - 1.41432i\)
\(L(\frac12)\) \(\approx\) \(0.864338 - 1.41432i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + (0.0747 + 0.997i)T \)
7 \( 1 \)
good3 \( 1 + (-0.702 - 0.216i)T + (2.47 + 1.68i)T^{2} \)
5 \( 1 + (-2.03 + 1.88i)T + (0.373 - 4.98i)T^{2} \)
11 \( 1 + (-2.29 + 1.56i)T + (4.01 - 10.2i)T^{2} \)
13 \( 1 + (3.14 + 1.51i)T + (8.10 + 10.1i)T^{2} \)
17 \( 1 + (1.60 + 4.08i)T + (-12.4 + 11.5i)T^{2} \)
19 \( 1 + (-2.26 - 3.92i)T + (-9.5 + 16.4i)T^{2} \)
23 \( 1 + (-1.17 + 2.99i)T + (-16.8 - 15.6i)T^{2} \)
29 \( 1 + (-5.83 + 7.31i)T + (-6.45 - 28.2i)T^{2} \)
31 \( 1 + (4.56 - 7.91i)T + (-15.5 - 26.8i)T^{2} \)
37 \( 1 + (-8.28 - 1.24i)T + (35.3 + 10.9i)T^{2} \)
41 \( 1 + (-0.176 - 0.773i)T + (-36.9 + 17.7i)T^{2} \)
43 \( 1 + (-0.242 + 1.06i)T + (-38.7 - 18.6i)T^{2} \)
47 \( 1 + (0.217 + 2.90i)T + (-46.4 + 7.00i)T^{2} \)
53 \( 1 + (8.25 - 1.24i)T + (50.6 - 15.6i)T^{2} \)
59 \( 1 + (2.47 + 2.29i)T + (4.40 + 58.8i)T^{2} \)
61 \( 1 + (0.390 + 0.0588i)T + (58.2 + 17.9i)T^{2} \)
67 \( 1 + (-5.94 + 10.2i)T + (-33.5 - 58.0i)T^{2} \)
71 \( 1 + (-4.55 - 5.71i)T + (-15.7 + 69.2i)T^{2} \)
73 \( 1 + (0.685 - 9.14i)T + (-72.1 - 10.8i)T^{2} \)
79 \( 1 + (-2.66 - 4.62i)T + (-39.5 + 68.4i)T^{2} \)
83 \( 1 + (-9.31 + 4.48i)T + (51.7 - 64.8i)T^{2} \)
89 \( 1 + (1.37 + 0.937i)T + (32.5 + 82.8i)T^{2} \)
97 \( 1 + 12.6T + 97T^{2} \)
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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

−9.880924699157113061974274665904, −9.473296232698663068546640851939, −8.756094790554749538603793933269, −7.944712937669051413545202118451, −6.47826536990563816728743657545, −5.49848518719957116334910720365, −4.63481649942670954036707206127, −3.32892123886709761546395126141, −2.34166926725775264580517458331, −0.873291370787342466590905866163, 1.94892169420838202661759587248, 3.00581109516612576064611612091, 4.46445034171997412982132544087, 5.55569898870947664083658279448, 6.45217007794663974884390369720, 7.15402200390892417739701988746, 8.028947265401387302819073166920, 9.195099697700742074063110059267, 9.553440483887301661423485408455, 10.66171129129589604679445572450

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