Properties

Label 2-648-216.157-c1-0-22
Degree $2$
Conductor $648$
Sign $0.542 + 0.840i$
Analytic cond. $5.17430$
Root an. cond. $2.27471$
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  + (−1.21 + 0.727i)2-s + (0.941 − 1.76i)4-s + (0.0465 + 0.127i)5-s + (−0.252 − 1.42i)7-s + (0.142 + 2.82i)8-s + (−0.149 − 0.121i)10-s + (0.771 − 2.11i)11-s + (0.634 − 0.755i)13-s + (1.34 + 1.55i)14-s + (−2.22 − 3.32i)16-s + (0.439 − 0.760i)17-s + (−5.20 + 3.00i)19-s + (0.269 + 0.0382i)20-s + (0.606 + 3.13i)22-s + (0.748 − 4.24i)23-s + ⋯
L(s)  = 1  + (−0.857 + 0.514i)2-s + (0.470 − 0.882i)4-s + (0.0208 + 0.0572i)5-s + (−0.0952 − 0.540i)7-s + (0.0503 + 0.998i)8-s + (−0.0473 − 0.0383i)10-s + (0.232 − 0.638i)11-s + (0.175 − 0.209i)13-s + (0.359 + 0.414i)14-s + (−0.557 − 0.830i)16-s + (0.106 − 0.184i)17-s + (−1.19 + 0.689i)19-s + (0.0602 + 0.00855i)20-s + (0.129 + 0.667i)22-s + (0.156 − 0.885i)23-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 648 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.542 + 0.840i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 648 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.542 + 0.840i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(648\)    =    \(2^{3} \cdot 3^{4}\)
Sign: $0.542 + 0.840i$
Analytic conductor: \(5.17430\)
Root analytic conductor: \(2.27471\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{648} (37, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 648,\ (\ :1/2),\ 0.542 + 0.840i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.722158 - 0.393318i\)
\(L(\frac12)\) \(\approx\) \(0.722158 - 0.393318i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + (1.21 - 0.727i)T \)
3 \( 1 \)
good5 \( 1 + (-0.0465 - 0.127i)T + (-3.83 + 3.21i)T^{2} \)
7 \( 1 + (0.252 + 1.42i)T + (-6.57 + 2.39i)T^{2} \)
11 \( 1 + (-0.771 + 2.11i)T + (-8.42 - 7.07i)T^{2} \)
13 \( 1 + (-0.634 + 0.755i)T + (-2.25 - 12.8i)T^{2} \)
17 \( 1 + (-0.439 + 0.760i)T + (-8.5 - 14.7i)T^{2} \)
19 \( 1 + (5.20 - 3.00i)T + (9.5 - 16.4i)T^{2} \)
23 \( 1 + (-0.748 + 4.24i)T + (-21.6 - 7.86i)T^{2} \)
29 \( 1 + (-0.146 - 0.174i)T + (-5.03 + 28.5i)T^{2} \)
31 \( 1 + (-1.15 + 6.56i)T + (-29.1 - 10.6i)T^{2} \)
37 \( 1 + (9.25 + 5.34i)T + (18.5 + 32.0i)T^{2} \)
41 \( 1 + (-1.19 - 1.00i)T + (7.11 + 40.3i)T^{2} \)
43 \( 1 + (1.11 - 3.05i)T + (-32.9 - 27.6i)T^{2} \)
47 \( 1 + (1.36 + 7.74i)T + (-44.1 + 16.0i)T^{2} \)
53 \( 1 - 5.08iT - 53T^{2} \)
59 \( 1 + (3.15 + 8.68i)T + (-45.1 + 37.9i)T^{2} \)
61 \( 1 + (-12.3 + 2.18i)T + (57.3 - 20.8i)T^{2} \)
67 \( 1 + (-5.90 + 7.03i)T + (-11.6 - 65.9i)T^{2} \)
71 \( 1 + (-5.93 + 10.2i)T + (-35.5 - 61.4i)T^{2} \)
73 \( 1 + (-4.88 - 8.45i)T + (-36.5 + 63.2i)T^{2} \)
79 \( 1 + (-5.49 + 4.60i)T + (13.7 - 77.7i)T^{2} \)
83 \( 1 + (0.867 + 1.03i)T + (-14.4 + 81.7i)T^{2} \)
89 \( 1 + (-3.19 - 5.54i)T + (-44.5 + 77.0i)T^{2} \)
97 \( 1 + (-0.779 - 0.283i)T + (74.3 + 62.3i)T^{2} \)
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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

−10.51095174918528676038639611411, −9.476120283594416933001247587216, −8.546302679515282822306752714184, −7.981418822411820925040912578312, −6.81591505653377486188402857645, −6.25422428686827245276313142810, −5.12531206501935378236189498499, −3.81097645237479055379002453825, −2.24454834461668267785162340062, −0.60906915524438472641187869827, 1.50967213485140057611538261171, 2.70625046916265510198027436168, 3.89761208459480289121513372664, 5.15788728672899322778432941684, 6.57820293296790597341536708814, 7.18512016066421254832712079530, 8.443682216832287513478885023233, 8.927996936374971552654086002466, 9.799547814081469611634196672696, 10.64146398535215118815754912357

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