Properties

Label 2-1620-15.14-c2-0-42
Degree $2$
Conductor $1620$
Sign $-0.917 + 0.397i$
Analytic cond. $44.1418$
Root an. cond. $6.64392$
Motivic weight $2$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (−1.98 − 4.58i)5-s + 0.667i·7-s − 19.4i·11-s − 20.0i·13-s + 16.3·17-s + 2.43·19-s + 34.3·23-s + (−17.1 + 18.2i)25-s − 5.73i·29-s − 26.8·31-s + (3.06 − 1.32i)35-s − 11.3i·37-s + 29.2i·41-s + 34.1i·43-s − 67.9·47-s + ⋯
L(s)  = 1  + (−0.397 − 0.917i)5-s + 0.0954i·7-s − 1.76i·11-s − 1.54i·13-s + 0.960·17-s + 0.128·19-s + 1.49·23-s + (−0.684 + 0.728i)25-s − 0.197i·29-s − 0.866·31-s + (0.0875 − 0.0378i)35-s − 0.307i·37-s + 0.713i·41-s + 0.793i·43-s − 1.44·47-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1620 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.917 + 0.397i)\, \overline{\Lambda}(3-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1620 ^{s/2} \, \Gamma_{\C}(s+1) \, L(s)\cr =\mathstrut & (-0.917 + 0.397i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1620\)    =    \(2^{2} \cdot 3^{4} \cdot 5\)
Sign: $-0.917 + 0.397i$
Analytic conductor: \(44.1418\)
Root analytic conductor: \(6.64392\)
Motivic weight: \(2\)
Rational: no
Arithmetic: yes
Character: $\chi_{1620} (809, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 1620,\ (\ :1),\ -0.917 + 0.397i)\)

Particular Values

\(L(\frac{3}{2})\) \(\approx\) \(1.404000840\)
\(L(\frac12)\) \(\approx\) \(1.404000840\)
\(L(2)\) 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 \( 1 \)
5 \( 1 + (1.98 + 4.58i)T \)
good7 \( 1 - 0.667iT - 49T^{2} \)
11 \( 1 + 19.4iT - 121T^{2} \)
13 \( 1 + 20.0iT - 169T^{2} \)
17 \( 1 - 16.3T + 289T^{2} \)
19 \( 1 - 2.43T + 361T^{2} \)
23 \( 1 - 34.3T + 529T^{2} \)
29 \( 1 + 5.73iT - 841T^{2} \)
31 \( 1 + 26.8T + 961T^{2} \)
37 \( 1 + 11.3iT - 1.36e3T^{2} \)
41 \( 1 - 29.2iT - 1.68e3T^{2} \)
43 \( 1 - 34.1iT - 1.84e3T^{2} \)
47 \( 1 + 67.9T + 2.20e3T^{2} \)
53 \( 1 - 37.0T + 2.80e3T^{2} \)
59 \( 1 + 19.0iT - 3.48e3T^{2} \)
61 \( 1 + 113.T + 3.72e3T^{2} \)
67 \( 1 + 106. iT - 4.48e3T^{2} \)
71 \( 1 - 37.0iT - 5.04e3T^{2} \)
73 \( 1 + 115. iT - 5.32e3T^{2} \)
79 \( 1 - 16.7T + 6.24e3T^{2} \)
83 \( 1 - 90.4T + 6.88e3T^{2} \)
89 \( 1 + 28.0iT - 7.92e3T^{2} \)
97 \( 1 + 9.42iT - 9.40e3T^{2} \)
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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

−8.818212259290652102421348487810, −8.035797980784912644345837127966, −7.61896803921573738499620398229, −6.21311146358042972894391219350, −5.50190210777616960286570109949, −4.90804591908387078342233678614, −3.50978026392420785826967954957, −3.05386856213471921719340858227, −1.20225396231761378083691277949, −0.42093773288122961420571988832, 1.54657862690408781936965317703, 2.55072451452822135261040597375, 3.68744271270958947602879660893, 4.46095319571871962691807201385, 5.39779218318790901778651679604, 6.71646143327258964932419248311, 7.07110912948336785483483426168, 7.68337535627251215705948364693, 8.906228702716079376978416795633, 9.579473655826298351932802023226

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