Properties

Label 2-644-161.100-c1-0-11
Degree $2$
Conductor $644$
Sign $0.984 + 0.172i$
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  + (−0.894 + 1.25i)3-s + (2.41 − 0.464i)5-s + (−0.317 − 2.62i)7-s + (0.204 + 0.589i)9-s + (4.00 − 3.15i)11-s + (−1.69 + 1.08i)13-s + (−1.57 + 3.44i)15-s + (−3.47 − 3.31i)17-s + (5.45 − 5.19i)19-s + (3.58 + 1.94i)21-s + (−4.72 + 0.844i)23-s + (0.957 − 0.383i)25-s + (−5.35 − 1.57i)27-s + (8.44 − 2.47i)29-s + (6.28 − 0.599i)31-s + ⋯
L(s)  = 1  + (−0.516 + 0.724i)3-s + (1.07 − 0.207i)5-s + (−0.119 − 0.992i)7-s + (0.0680 + 0.196i)9-s + (1.20 − 0.949i)11-s + (−0.469 + 0.301i)13-s + (−0.405 + 0.889i)15-s + (−0.843 − 0.804i)17-s + (1.25 − 1.19i)19-s + (0.781 + 0.425i)21-s + (−0.984 + 0.176i)23-s + (0.191 − 0.0766i)25-s + (−1.03 − 0.302i)27-s + (1.56 − 0.460i)29-s + (1.12 − 0.107i)31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 644 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.984 + 0.172i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 644 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.984 + 0.172i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(644\)    =    \(2^{2} \cdot 7 \cdot 23\)
Sign: $0.984 + 0.172i$
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: \((2,\ 644,\ (\ :1/2),\ 0.984 + 0.172i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.54968 - 0.134936i\)
\(L(\frac12)\) \(\approx\) \(1.54968 - 0.134936i\)
\(L(\frac{3}{2})\) 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 \( 1 + (0.317 + 2.62i)T \)
23 \( 1 + (4.72 - 0.844i)T \)
good3 \( 1 + (0.894 - 1.25i)T + (-0.981 - 2.83i)T^{2} \)
5 \( 1 + (-2.41 + 0.464i)T + (4.64 - 1.85i)T^{2} \)
11 \( 1 + (-4.00 + 3.15i)T + (2.59 - 10.6i)T^{2} \)
13 \( 1 + (1.69 - 1.08i)T + (5.40 - 11.8i)T^{2} \)
17 \( 1 + (3.47 + 3.31i)T + (0.808 + 16.9i)T^{2} \)
19 \( 1 + (-5.45 + 5.19i)T + (0.904 - 18.9i)T^{2} \)
29 \( 1 + (-8.44 + 2.47i)T + (24.3 - 15.6i)T^{2} \)
31 \( 1 + (-6.28 + 0.599i)T + (30.4 - 5.86i)T^{2} \)
37 \( 1 + (-2.15 - 6.23i)T + (-29.0 + 22.8i)T^{2} \)
41 \( 1 + (-6.09 - 7.03i)T + (-5.83 + 40.5i)T^{2} \)
43 \( 1 + (-2.06 - 4.51i)T + (-28.1 + 32.4i)T^{2} \)
47 \( 1 + (-2.29 + 3.98i)T + (-23.5 - 40.7i)T^{2} \)
53 \( 1 + (0.179 - 3.76i)T + (-52.7 - 5.03i)T^{2} \)
59 \( 1 + (7.29 + 3.76i)T + (34.2 + 48.0i)T^{2} \)
61 \( 1 + (-3.74 - 5.25i)T + (-19.9 + 57.6i)T^{2} \)
67 \( 1 + (1.57 - 0.629i)T + (48.4 - 46.2i)T^{2} \)
71 \( 1 + (0.475 - 3.30i)T + (-68.1 - 20.0i)T^{2} \)
73 \( 1 + (2.08 + 8.57i)T + (-64.8 + 33.4i)T^{2} \)
79 \( 1 + (-0.123 - 2.59i)T + (-78.6 + 7.50i)T^{2} \)
83 \( 1 + (-4.62 + 5.34i)T + (-11.8 - 82.1i)T^{2} \)
89 \( 1 + (-4.31 - 0.412i)T + (87.3 + 16.8i)T^{2} \)
97 \( 1 + (-2.82 - 3.26i)T + (-13.8 + 96.0i)T^{2} \)
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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

−10.40961651179714637604900311239, −9.667454318564677125567931048835, −9.255013561352318575716674051308, −7.913525774356973379054025855310, −6.72435137829345637028783604034, −6.06461040544516965067166182090, −4.86530130548020383967976517621, −4.28345348924769183722698684768, −2.77718204218529148026480379981, −1.04605084411455398476360747183, 1.48313240401060519611805017107, 2.41256409242000004707785472958, 4.05406928584980872115668553221, 5.47918586775250785544036614880, 6.19176306037415744819436347941, 6.70941339412642520843645051318, 7.85303237328311933584391927157, 9.075701917401763073316129293363, 9.684127092386704846734406596371, 10.43823530038718431555062118325

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