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Properties

Label 2-648-9.7-c3-0-14
Degree $2$
Conductor $648$
Sign $-0.766 - 0.642i$
Analytic cond. $38.2332$
Root an. cond. $6.18330$
Motivic weight $3$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (10.6 + 18.3i)5-s + (−14.6 + 25.3i)7-s + (0.5 − 0.866i)11-s + (26.4 + 45.8i)13-s + 96.9·17-s + 126.·19-s + (−11.4 − 19.8i)23-s + (−162. + 282. i)25-s + (−66.7 + 115. i)29-s + (−50.9 − 88.1i)31-s − 620.·35-s + 105.·37-s + (8.16 + 14.1i)41-s + (100. − 174. i)43-s + (−125. + 218. i)47-s + ⋯
L(s)  = 1  + (0.949 + 1.64i)5-s + (−0.789 + 1.36i)7-s + (0.0137 − 0.0237i)11-s + (0.564 + 0.978i)13-s + 1.38·17-s + 1.52·19-s + (−0.103 − 0.180i)23-s + (−1.30 + 2.25i)25-s + (−0.427 + 0.740i)29-s + (−0.294 − 0.510i)31-s − 2.99·35-s + 0.466·37-s + (0.0311 + 0.0538i)41-s + (0.356 − 0.618i)43-s + (−0.390 + 0.676i)47-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 648 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.766 - 0.642i)\, \overline{\Lambda}(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 648 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & (-0.766 - 0.642i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(648\)    =    \(2^{3} \cdot 3^{4}\)
Sign: $-0.766 - 0.642i$
Analytic conductor: \(38.2332\)
Root analytic conductor: \(6.18330\)
Motivic weight: \(3\)
Rational: no
Arithmetic: yes
Character: $\chi_{648} (217, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 648,\ (\ :3/2),\ -0.766 - 0.642i)\)

Particular Values

\(L(2)\) \(\approx\) \(2.266720783\)
\(L(\frac12)\) \(\approx\) \(2.266720783\)
\(L(\frac{5}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
3 \( 1 \)
good5 \( 1 + (-10.6 - 18.3i)T + (-62.5 + 108. i)T^{2} \)
7 \( 1 + (14.6 - 25.3i)T + (-171.5 - 297. i)T^{2} \)
11 \( 1 + (-0.5 + 0.866i)T + (-665.5 - 1.15e3i)T^{2} \)
13 \( 1 + (-26.4 - 45.8i)T + (-1.09e3 + 1.90e3i)T^{2} \)
17 \( 1 - 96.9T + 4.91e3T^{2} \)
19 \( 1 - 126.T + 6.85e3T^{2} \)
23 \( 1 + (11.4 + 19.8i)T + (-6.08e3 + 1.05e4i)T^{2} \)
29 \( 1 + (66.7 - 115. i)T + (-1.21e4 - 2.11e4i)T^{2} \)
31 \( 1 + (50.9 + 88.1i)T + (-1.48e4 + 2.57e4i)T^{2} \)
37 \( 1 - 105.T + 5.06e4T^{2} \)
41 \( 1 + (-8.16 - 14.1i)T + (-3.44e4 + 5.96e4i)T^{2} \)
43 \( 1 + (-100. + 174. i)T + (-3.97e4 - 6.88e4i)T^{2} \)
47 \( 1 + (125. - 218. i)T + (-5.19e4 - 8.99e4i)T^{2} \)
53 \( 1 - 148.T + 1.48e5T^{2} \)
59 \( 1 + (36.8 + 63.7i)T + (-1.02e5 + 1.77e5i)T^{2} \)
61 \( 1 + (-303. + 526. i)T + (-1.13e5 - 1.96e5i)T^{2} \)
67 \( 1 + (380. + 659. i)T + (-1.50e5 + 2.60e5i)T^{2} \)
71 \( 1 + 701.T + 3.57e5T^{2} \)
73 \( 1 + 287T + 3.89e5T^{2} \)
79 \( 1 + (-64.2 + 111. i)T + (-2.46e5 - 4.26e5i)T^{2} \)
83 \( 1 + (-80.2 + 138. i)T + (-2.85e5 - 4.95e5i)T^{2} \)
89 \( 1 + 430.T + 7.04e5T^{2} \)
97 \( 1 + (-15.5 + 26.9i)T + (-4.56e5 - 7.90e5i)T^{2} \)
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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

−10.36811647471940464420247506299, −9.553200576854516723451046817336, −9.169221851153594909505411245781, −7.68161724028510419962943689878, −6.77542452850580058567411460570, −5.99501233571090602245326591081, −5.46935189126835123455420737121, −3.46607680167183040452817112205, −2.85579461227735792296342099087, −1.75941171531223392201104105054, 0.71504875458217010143526142182, 1.27965750474988099893347685210, 3.17882134052571890939206811343, 4.21878586349458622119873033549, 5.41120232621323045105962354891, 5.89577746237190044180863581545, 7.29831179919883849203230939977, 8.066539785465334680033837366890, 9.107130253428675347755400027101, 9.976563100753562736963665520124

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