Properties

Label 2-240-3.2-c2-0-8
Degree $2$
Conductor $240$
Sign $0.745 + 0.666i$
Analytic cond. $6.53952$
Root an. cond. $2.55724$
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  + (−2 + 2.23i)3-s − 2.23i·5-s − 2·7-s + (−1.00 − 8.94i)9-s − 13.4i·11-s + 8·13-s + (5.00 + 4.47i)15-s + 13.4i·17-s + 34·19-s + (4 − 4.47i)21-s − 40.2i·23-s − 5.00·25-s + (22.0 + 15.6i)27-s − 40.2i·29-s − 14·31-s + ⋯
L(s)  = 1  + (−0.666 + 0.745i)3-s − 0.447i·5-s − 0.285·7-s + (−0.111 − 0.993i)9-s − 1.21i·11-s + 0.615·13-s + (0.333 + 0.298i)15-s + 0.789i·17-s + 1.78·19-s + (0.190 − 0.212i)21-s − 1.74i·23-s − 0.200·25-s + (0.814 + 0.579i)27-s − 1.38i·29-s − 0.451·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 240 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.745 + 0.666i)\, \overline{\Lambda}(3-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 240 ^{s/2} \, \Gamma_{\C}(s+1) \, L(s)\cr =\mathstrut & (0.745 + 0.666i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(240\)    =    \(2^{4} \cdot 3 \cdot 5\)
Sign: $0.745 + 0.666i$
Analytic conductor: \(6.53952\)
Root analytic conductor: \(2.55724\)
Motivic weight: \(2\)
Rational: no
Arithmetic: yes
Character: $\chi_{240} (161, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 240,\ (\ :1),\ 0.745 + 0.666i)\)

Particular Values

\(L(\frac{3}{2})\) \(\approx\) \(1.04361 - 0.398624i\)
\(L(\frac12)\) \(\approx\) \(1.04361 - 0.398624i\)
\(L(2)\) 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 \( 1 + (2 - 2.23i)T \)
5 \( 1 + 2.23iT \)
good7 \( 1 + 2T + 49T^{2} \)
11 \( 1 + 13.4iT - 121T^{2} \)
13 \( 1 - 8T + 169T^{2} \)
17 \( 1 - 13.4iT - 289T^{2} \)
19 \( 1 - 34T + 361T^{2} \)
23 \( 1 + 40.2iT - 529T^{2} \)
29 \( 1 + 40.2iT - 841T^{2} \)
31 \( 1 + 14T + 961T^{2} \)
37 \( 1 - 56T + 1.36e3T^{2} \)
41 \( 1 + 26.8iT - 1.68e3T^{2} \)
43 \( 1 + 8T + 1.84e3T^{2} \)
47 \( 1 - 40.2iT - 2.20e3T^{2} \)
53 \( 1 + 40.2iT - 2.80e3T^{2} \)
59 \( 1 + 13.4iT - 3.48e3T^{2} \)
61 \( 1 + 46T + 3.72e3T^{2} \)
67 \( 1 + 32T + 4.48e3T^{2} \)
71 \( 1 + 53.6iT - 5.04e3T^{2} \)
73 \( 1 + 106T + 5.32e3T^{2} \)
79 \( 1 - 22T + 6.24e3T^{2} \)
83 \( 1 - 120. iT - 6.88e3T^{2} \)
89 \( 1 - 107. iT - 7.92e3T^{2} \)
97 \( 1 - 122T + 9.40e3T^{2} \)
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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

−11.61463529123126255680878263803, −10.91809737861071506096622982979, −9.910082970761950223351205460749, −9.005573745742292200058942456802, −8.025773303184323858916193764338, −6.33933711002365588561088727038, −5.68422698109558736905296363283, −4.39793582494968958516912021908, −3.25400737175870062306895408962, −0.72093817613293607114905671851, 1.45434820455017486105777129164, 3.14551828905361041951591584773, 4.92482270008296073106892430765, 5.94632777445677102714009961557, 7.19655001376276928028719173631, 7.55759314885657683149523693394, 9.267594117484508364717482258331, 10.13884717696738528414571348664, 11.35444133131044377004341116583, 11.84635163800132264612389136374

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