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Properties

Label 2-1680-35.27-c1-0-28
Degree $2$
Conductor $1680$
Sign $0.957 + 0.288i$
Analytic cond. $13.4148$
Root an. cond. $3.66263$
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  + (−0.707 − 0.707i)3-s + (2.23 + 0.0836i)5-s + (2.64 + 0.0627i)7-s + 1.00i·9-s − 3.98·11-s + (0.500 + 0.500i)13-s + (−1.52 − 1.63i)15-s + (−1.67 + 1.67i)17-s + 7.21·19-s + (−1.82 − 1.91i)21-s + (5.16 − 5.16i)23-s + (4.98 + 0.373i)25-s + (0.707 − 0.707i)27-s − 3.65i·29-s + 4.93i·31-s + ⋯
L(s)  = 1  + (−0.408 − 0.408i)3-s + (0.999 + 0.0373i)5-s + (0.999 + 0.0237i)7-s + 0.333i·9-s − 1.20·11-s + (0.138 + 0.138i)13-s + (−0.392 − 0.423i)15-s + (−0.407 + 0.407i)17-s + 1.65·19-s + (−0.398 − 0.417i)21-s + (1.07 − 1.07i)23-s + (0.997 + 0.0747i)25-s + (0.136 − 0.136i)27-s − 0.678i·29-s + 0.886i·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1680 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.957 + 0.288i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1680 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.957 + 0.288i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1680\)    =    \(2^{4} \cdot 3 \cdot 5 \cdot 7\)
Sign: $0.957 + 0.288i$
Analytic conductor: \(13.4148\)
Root analytic conductor: \(3.66263\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{1680} (97, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 1680,\ (\ :1/2),\ 0.957 + 0.288i)\)

Particular Values

\(L(1)\) \(\approx\) \(2.005890217\)
\(L(\frac12)\) \(\approx\) \(2.005890217\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
3 \( 1 + (0.707 + 0.707i)T \)
5 \( 1 + (-2.23 - 0.0836i)T \)
7 \( 1 + (-2.64 - 0.0627i)T \)
good11 \( 1 + 3.98T + 11T^{2} \)
13 \( 1 + (-0.500 - 0.500i)T + 13iT^{2} \)
17 \( 1 + (1.67 - 1.67i)T - 17iT^{2} \)
19 \( 1 - 7.21T + 19T^{2} \)
23 \( 1 + (-5.16 + 5.16i)T - 23iT^{2} \)
29 \( 1 + 3.65iT - 29T^{2} \)
31 \( 1 - 4.93iT - 31T^{2} \)
37 \( 1 + (-0.292 - 0.292i)T + 37iT^{2} \)
41 \( 1 - 7.63iT - 41T^{2} \)
43 \( 1 + (3.65 - 3.65i)T - 43iT^{2} \)
47 \( 1 + (-0.305 + 0.305i)T - 47iT^{2} \)
53 \( 1 + (-5.39 + 5.39i)T - 53iT^{2} \)
59 \( 1 + 6.10T + 59T^{2} \)
61 \( 1 + 7.11iT - 61T^{2} \)
67 \( 1 + (0.944 + 0.944i)T + 67iT^{2} \)
71 \( 1 + 1.19T + 71T^{2} \)
73 \( 1 + (-1.38 - 1.38i)T + 73iT^{2} \)
79 \( 1 + 8.64iT - 79T^{2} \)
83 \( 1 + (-11.9 - 11.9i)T + 83iT^{2} \)
89 \( 1 - 7.82T + 89T^{2} \)
97 \( 1 + (-7.43 + 7.43i)T - 97iT^{2} \)
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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

−9.329879070251381182000137235499, −8.424562072346381531121610857259, −7.75171624118850950317835968251, −6.86970595524963592843753446309, −6.04587906206591642184191227980, −5.11624300252636047356916427095, −4.80828652148871820137763049238, −3.05823121146043875506090694981, −2.11787839723481740388908280199, −1.06581015204560507918505721862, 1.07539600389118560525244872380, 2.31346891834334979940297797602, 3.36148955979407993695996775412, 4.78592384315084018443960756523, 5.29522642133135004488439989804, 5.79759572386708552602248032767, 7.13290865342012085964367680693, 7.66566670851780137733963543360, 8.825270147664462902440347446904, 9.374538021694822477603182709158

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