Properties

Label 2-644-161.100-c1-0-2
Degree $2$
Conductor $644$
Sign $-0.170 - 0.985i$
Analytic cond. $5.14236$
Root an. cond. $2.26767$
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  + (1.51 − 2.12i)3-s + (−3.83 + 0.738i)5-s + (0.145 + 2.64i)7-s + (−1.24 − 3.60i)9-s + (−4.00 + 3.15i)11-s + (−3.22 + 2.07i)13-s + (−4.23 + 9.26i)15-s + (4.61 + 4.39i)17-s + (−0.321 + 0.306i)19-s + (5.83 + 3.69i)21-s + (−2.65 − 3.99i)23-s + (9.48 − 3.79i)25-s + (−2.03 − 0.598i)27-s + (−3.71 + 1.09i)29-s + (−1.61 + 0.154i)31-s + ⋯
L(s)  = 1  + (0.874 − 1.22i)3-s + (−1.71 + 0.330i)5-s + (0.0548 + 0.998i)7-s + (−0.415 − 1.20i)9-s + (−1.20 + 0.950i)11-s + (−0.895 + 0.575i)13-s + (−1.09 + 2.39i)15-s + (1.11 + 1.06i)17-s + (−0.0737 + 0.0703i)19-s + (1.27 + 0.805i)21-s + (−0.554 − 0.832i)23-s + (1.89 − 0.759i)25-s + (−0.392 − 0.115i)27-s + (−0.689 + 0.202i)29-s + (−0.290 + 0.0276i)31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 644 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.170 - 0.985i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 644 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (-0.170 - 0.985i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(644\)    =    \(2^{2} \cdot 7 \cdot 23\)
Sign: $-0.170 - 0.985i$
Analytic conductor: \(5.14236\)
Root analytic conductor: \(2.26767\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{644} (261, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 644,\ (\ :1/2),\ -0.170 - 0.985i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.400728 + 0.476091i\)
\(L(\frac12)\) \(\approx\) \(0.400728 + 0.476091i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
7 \( 1 + (-0.145 - 2.64i)T \)
23 \( 1 + (2.65 + 3.99i)T \)
good3 \( 1 + (-1.51 + 2.12i)T + (-0.981 - 2.83i)T^{2} \)
5 \( 1 + (3.83 - 0.738i)T + (4.64 - 1.85i)T^{2} \)
11 \( 1 + (4.00 - 3.15i)T + (2.59 - 10.6i)T^{2} \)
13 \( 1 + (3.22 - 2.07i)T + (5.40 - 11.8i)T^{2} \)
17 \( 1 + (-4.61 - 4.39i)T + (0.808 + 16.9i)T^{2} \)
19 \( 1 + (0.321 - 0.306i)T + (0.904 - 18.9i)T^{2} \)
29 \( 1 + (3.71 - 1.09i)T + (24.3 - 15.6i)T^{2} \)
31 \( 1 + (1.61 - 0.154i)T + (30.4 - 5.86i)T^{2} \)
37 \( 1 + (1.36 + 3.94i)T + (-29.0 + 22.8i)T^{2} \)
41 \( 1 + (3.46 + 3.99i)T + (-5.83 + 40.5i)T^{2} \)
43 \( 1 + (2.18 + 4.78i)T + (-28.1 + 32.4i)T^{2} \)
47 \( 1 + (3.28 - 5.69i)T + (-23.5 - 40.7i)T^{2} \)
53 \( 1 + (0.218 - 4.57i)T + (-52.7 - 5.03i)T^{2} \)
59 \( 1 + (7.58 + 3.90i)T + (34.2 + 48.0i)T^{2} \)
61 \( 1 + (-6.54 - 9.18i)T + (-19.9 + 57.6i)T^{2} \)
67 \( 1 + (-12.4 + 4.98i)T + (48.4 - 46.2i)T^{2} \)
71 \( 1 + (1.30 - 9.06i)T + (-68.1 - 20.0i)T^{2} \)
73 \( 1 + (-2.04 - 8.42i)T + (-64.8 + 33.4i)T^{2} \)
79 \( 1 + (-0.0213 - 0.448i)T + (-78.6 + 7.50i)T^{2} \)
83 \( 1 + (10.8 - 12.4i)T + (-11.8 - 82.1i)T^{2} \)
89 \( 1 + (12.3 + 1.17i)T + (87.3 + 16.8i)T^{2} \)
97 \( 1 + (-7.89 - 9.10i)T + (-13.8 + 96.0i)T^{2} \)
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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

−10.95197361381673862062129436376, −9.865585638668882313411790778674, −8.598764221500812653331264226950, −8.056010862839100661881510463867, −7.47723298015620306603881567888, −6.81245020151336388802003576641, −5.35171145211226214514435054862, −4.05468405271570458423401595110, −2.88040746757243011964819147573, −2.00706420196067071138754650895, 0.28933179794000392895377880272, 3.17021153725378938095218076923, 3.47055096323304888959550328487, 4.61687490324988509724200824213, 5.24281556162130564290837255237, 7.29456328371717250720265771217, 7.924532127558048353308048996984, 8.330984020008099406351031519933, 9.620992397498409799535982327404, 10.19101643042168921311547380983

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