Properties

Label 2-644-1.1-c1-0-3
Degree $2$
Conductor $644$
Sign $1$
Analytic cond. $5.14236$
Root an. cond. $2.26767$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 3.18·3-s + 3.43·5-s + 7-s + 7.16·9-s − 2.57·11-s − 1.58·13-s − 10.9·15-s − 4.77·17-s + 8.65·19-s − 3.18·21-s + 23-s + 6.80·25-s − 13.2·27-s + 7.67·29-s − 5.02·31-s + 8.21·33-s + 3.43·35-s + 3.71·37-s + 5.06·39-s + 11.9·41-s + 7.46·43-s + 24.6·45-s − 4.43·47-s + 49-s + 15.2·51-s + 8.06·53-s − 8.84·55-s + ⋯
L(s)  = 1  − 1.84·3-s + 1.53·5-s + 0.377·7-s + 2.38·9-s − 0.776·11-s − 0.440·13-s − 2.82·15-s − 1.15·17-s + 1.98·19-s − 0.695·21-s + 0.208·23-s + 1.36·25-s − 2.55·27-s + 1.42·29-s − 0.902·31-s + 1.42·33-s + 0.580·35-s + 0.611·37-s + 0.811·39-s + 1.86·41-s + 1.13·43-s + 3.66·45-s − 0.647·47-s + 0.142·49-s + 2.13·51-s + 1.10·53-s − 1.19·55-s + ⋯

Functional equation

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

Invariants

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

Particular Values

\(L(1)\) \(\approx\) \(1.093258008\)
\(L(\frac12)\) \(\approx\) \(1.093258008\)
\(L(\frac{3}{2})\) 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 \( 1 - T \)
23 \( 1 - T \)
good3 \( 1 + 3.18T + 3T^{2} \)
5 \( 1 - 3.43T + 5T^{2} \)
11 \( 1 + 2.57T + 11T^{2} \)
13 \( 1 + 1.58T + 13T^{2} \)
17 \( 1 + 4.77T + 17T^{2} \)
19 \( 1 - 8.65T + 19T^{2} \)
29 \( 1 - 7.67T + 29T^{2} \)
31 \( 1 + 5.02T + 31T^{2} \)
37 \( 1 - 3.71T + 37T^{2} \)
41 \( 1 - 11.9T + 41T^{2} \)
43 \( 1 - 7.46T + 43T^{2} \)
47 \( 1 + 4.43T + 47T^{2} \)
53 \( 1 - 8.06T + 53T^{2} \)
59 \( 1 + 1.88T + 59T^{2} \)
61 \( 1 + 5.71T + 61T^{2} \)
67 \( 1 - 13.2T + 67T^{2} \)
71 \( 1 - 5.96T + 71T^{2} \)
73 \( 1 + 10.8T + 73T^{2} \)
79 \( 1 - 2.01T + 79T^{2} \)
83 \( 1 - 3.43T + 83T^{2} \)
89 \( 1 + 6.82T + 89T^{2} \)
97 \( 1 - 10.0T + 97T^{2} \)
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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

−10.67572230378846838644441246592, −9.887151237964411799034307357173, −9.250055380600534164036836966144, −7.60125171882261373214136427978, −6.74369143360798783337367867935, −5.83224777025047671949294055186, −5.31771153946630838705608036104, −4.56754226137091210070241163549, −2.43400581438374559371773621780, −1.03917200227646892140178026851, 1.03917200227646892140178026851, 2.43400581438374559371773621780, 4.56754226137091210070241163549, 5.31771153946630838705608036104, 5.83224777025047671949294055186, 6.74369143360798783337367867935, 7.60125171882261373214136427978, 9.250055380600534164036836966144, 9.887151237964411799034307357173, 10.67572230378846838644441246592

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