Properties

Label 2-720-5.4-c1-0-8
Degree $2$
Conductor $720$
Sign $0.894 + 0.447i$
Analytic cond. $5.74922$
Root an. cond. $2.39775$
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  + (2 + i)5-s − 2i·7-s + 2·11-s − 6i·13-s − 2i·17-s + 4i·23-s + (3 + 4i)25-s + 8·31-s + (2 − 4i)35-s + 2i·37-s − 2·41-s − 4i·43-s − 8i·47-s + 3·49-s + 6i·53-s + ⋯
L(s)  = 1  + (0.894 + 0.447i)5-s − 0.755i·7-s + 0.603·11-s − 1.66i·13-s − 0.485i·17-s + 0.834i·23-s + (0.600 + 0.800i)25-s + 1.43·31-s + (0.338 − 0.676i)35-s + 0.328i·37-s − 0.312·41-s − 0.609i·43-s − 1.16i·47-s + 0.428·49-s + 0.824i·53-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 720 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.894 + 0.447i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 720 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.894 + 0.447i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(720\)    =    \(2^{4} \cdot 3^{2} \cdot 5\)
Sign: $0.894 + 0.447i$
Analytic conductor: \(5.74922\)
Root analytic conductor: \(2.39775\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{720} (289, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 720,\ (\ :1/2),\ 0.894 + 0.447i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.76850 - 0.417486i\)
\(L(\frac12)\) \(\approx\) \(1.76850 - 0.417486i\)
\(L(\frac{3}{2})\) 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 \( 1 \)
5 \( 1 + (-2 - i)T \)
good7 \( 1 + 2iT - 7T^{2} \)
11 \( 1 - 2T + 11T^{2} \)
13 \( 1 + 6iT - 13T^{2} \)
17 \( 1 + 2iT - 17T^{2} \)
19 \( 1 + 19T^{2} \)
23 \( 1 - 4iT - 23T^{2} \)
29 \( 1 + 29T^{2} \)
31 \( 1 - 8T + 31T^{2} \)
37 \( 1 - 2iT - 37T^{2} \)
41 \( 1 + 2T + 41T^{2} \)
43 \( 1 + 4iT - 43T^{2} \)
47 \( 1 + 8iT - 47T^{2} \)
53 \( 1 - 6iT - 53T^{2} \)
59 \( 1 + 10T + 59T^{2} \)
61 \( 1 - 2T + 61T^{2} \)
67 \( 1 - 8iT - 67T^{2} \)
71 \( 1 - 12T + 71T^{2} \)
73 \( 1 - 4iT - 73T^{2} \)
79 \( 1 + 79T^{2} \)
83 \( 1 - 4iT - 83T^{2} \)
89 \( 1 + 10T + 89T^{2} \)
97 \( 1 + 8iT - 97T^{2} \)
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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

−10.22913772100440830577826844760, −9.764343617008022671293880492594, −8.662422783980672968610042698474, −7.63705598331460257159777406841, −6.84168696337740343179673921397, −5.90010035099999057095378839903, −5.03860714797579347515688127826, −3.67566400256894938934555642636, −2.67488333729237000131898752914, −1.09800954351398469309793518454, 1.53278371253038712821949014209, 2.55175790639803455243570848933, 4.16511323275093133792461951340, 5.01943500752975389755325648208, 6.24744767974066892109443720473, 6.57566810497671810407901358358, 8.094475984055633904972492274591, 9.001869391244456565021831771862, 9.384141790481265150351677797226, 10.35185190618789454496172302198

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