Properties

Label 2-20e2-20.19-c8-0-8
Degree $2$
Conductor $400$
Sign $0.447 - 0.894i$
Analytic cond. $162.951$
Root an. cond. $12.7652$
Motivic weight $8$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 141.·3-s − 2.55e3·7-s + 1.35e4·9-s − 1.91e4i·11-s + 2.77e4i·13-s + 5.03e4i·17-s + 1.08e5i·19-s + 3.62e5·21-s − 1.76e5·23-s − 9.99e5·27-s − 5.49e4·29-s − 1.17e6i·31-s + 2.72e6i·33-s + 7.93e5i·37-s − 3.93e6i·39-s + ⋯
L(s)  = 1  − 1.75·3-s − 1.06·7-s + 2.07·9-s − 1.30i·11-s + 0.970i·13-s + 0.603i·17-s + 0.833i·19-s + 1.86·21-s − 0.630·23-s − 1.88·27-s − 0.0777·29-s − 1.27i·31-s + 2.29i·33-s + 0.423i·37-s − 1.70i·39-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 400 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.447 - 0.894i)\, \overline{\Lambda}(9-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 400 ^{s/2} \, \Gamma_{\C}(s+4) \, L(s)\cr =\mathstrut & (0.447 - 0.894i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(400\)    =    \(2^{4} \cdot 5^{2}\)
Sign: $0.447 - 0.894i$
Analytic conductor: \(162.951\)
Root analytic conductor: \(12.7652\)
Motivic weight: \(8\)
Rational: no
Arithmetic: yes
Character: $\chi_{400} (399, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 400,\ (\ :4),\ 0.447 - 0.894i)\)

Particular Values

\(L(\frac{9}{2})\) \(\approx\) \(0.3153613718\)
\(L(\frac12)\) \(\approx\) \(0.3153613718\)
\(L(5)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
5 \( 1 \)
good3 \( 1 + 141.T + 6.56e3T^{2} \)
7 \( 1 + 2.55e3T + 5.76e6T^{2} \)
11 \( 1 + 1.91e4iT - 2.14e8T^{2} \)
13 \( 1 - 2.77e4iT - 8.15e8T^{2} \)
17 \( 1 - 5.03e4iT - 6.97e9T^{2} \)
19 \( 1 - 1.08e5iT - 1.69e10T^{2} \)
23 \( 1 + 1.76e5T + 7.83e10T^{2} \)
29 \( 1 + 5.49e4T + 5.00e11T^{2} \)
31 \( 1 + 1.17e6iT - 8.52e11T^{2} \)
37 \( 1 - 7.93e5iT - 3.51e12T^{2} \)
41 \( 1 + 7.55e4T + 7.98e12T^{2} \)
43 \( 1 + 4.99e5T + 1.16e13T^{2} \)
47 \( 1 - 2.86e6T + 2.38e13T^{2} \)
53 \( 1 + 1.11e7iT - 6.22e13T^{2} \)
59 \( 1 + 2.18e7iT - 1.46e14T^{2} \)
61 \( 1 + 2.38e7T + 1.91e14T^{2} \)
67 \( 1 - 7.49e6T + 4.06e14T^{2} \)
71 \( 1 - 1.00e7iT - 6.45e14T^{2} \)
73 \( 1 + 6.51e6iT - 8.06e14T^{2} \)
79 \( 1 + 4.87e7iT - 1.51e15T^{2} \)
83 \( 1 + 7.34e7T + 2.25e15T^{2} \)
89 \( 1 + 8.67e7T + 3.93e15T^{2} \)
97 \( 1 + 4.66e7iT - 7.83e15T^{2} \)
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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

−10.21328150003355463154438608886, −9.495448649156679693526192953002, −8.185405493521239945862048778387, −6.86952924062563360387093448046, −6.13226942048627865111764829523, −5.72421239097499363557047047350, −4.38936192738673117353868498056, −3.45134932454943720710210562919, −1.70127019855436247034101360573, −0.46960785967198620690879698889, 0.17466674928684781887001950402, 1.23008708650207406322403643795, 2.78064903969426571506048786112, 4.24327765136148276801356146872, 5.12383968055934745020149707987, 5.95552904729897319097058077703, 6.84846903417362738737156843140, 7.45528701882820196510723395268, 9.172234247552365790896124585366, 10.08334744595124484361985211624

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