Properties

Label 2-240-15.14-c2-0-14
Degree $2$
Conductor $240$
Sign $-0.505 + 0.862i$
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  + (−0.938 + 2.84i)3-s + (−4.88 − 1.05i)5-s + 6.81i·7-s + (−7.23 − 5.34i)9-s − 7.52i·11-s − 16.2i·13-s + (7.58 − 12.9i)15-s − 4.11·17-s − 7.86·19-s + (−19.4 − 6.39i)21-s − 19.5·23-s + (22.7 + 10.2i)25-s + (22.0 − 15.6i)27-s − 55.8i·29-s − 43.4·31-s + ⋯
L(s)  = 1  + (−0.312 + 0.949i)3-s + (−0.977 − 0.210i)5-s + 0.973i·7-s + (−0.804 − 0.594i)9-s − 0.684i·11-s − 1.24i·13-s + (0.505 − 0.862i)15-s − 0.242·17-s − 0.413·19-s + (−0.924 − 0.304i)21-s − 0.848·23-s + (0.911 + 0.411i)25-s + (0.815 − 0.578i)27-s − 1.92i·29-s − 1.40·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 240 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.505 + 0.862i)\, \overline{\Lambda}(3-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 240 ^{s/2} \, \Gamma_{\C}(s+1) \, L(s)\cr =\mathstrut & (-0.505 + 0.862i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(240\)    =    \(2^{4} \cdot 3 \cdot 5\)
Sign: $-0.505 + 0.862i$
Analytic conductor: \(6.53952\)
Root analytic conductor: \(2.55724\)
Motivic weight: \(2\)
Rational: no
Arithmetic: yes
Character: $\chi_{240} (209, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 240,\ (\ :1),\ -0.505 + 0.862i)\)

Particular Values

\(L(\frac{3}{2})\) \(\approx\) \(0.0829951 - 0.144830i\)
\(L(\frac12)\) \(\approx\) \(0.0829951 - 0.144830i\)
\(L(2)\) 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 \( 1 + (0.938 - 2.84i)T \)
5 \( 1 + (4.88 + 1.05i)T \)
good7 \( 1 - 6.81iT - 49T^{2} \)
11 \( 1 + 7.52iT - 121T^{2} \)
13 \( 1 + 16.2iT - 169T^{2} \)
17 \( 1 + 4.11T + 289T^{2} \)
19 \( 1 + 7.86T + 361T^{2} \)
23 \( 1 + 19.5T + 529T^{2} \)
29 \( 1 + 55.8iT - 841T^{2} \)
31 \( 1 + 43.4T + 961T^{2} \)
37 \( 1 - 31.5iT - 1.36e3T^{2} \)
41 \( 1 - 51.3iT - 1.68e3T^{2} \)
43 \( 1 + 51.2iT - 1.84e3T^{2} \)
47 \( 1 + 61.7T + 2.20e3T^{2} \)
53 \( 1 + 82.7T + 2.80e3T^{2} \)
59 \( 1 - 97.6iT - 3.48e3T^{2} \)
61 \( 1 - 4.13T + 3.72e3T^{2} \)
67 \( 1 - 63.1iT - 4.48e3T^{2} \)
71 \( 1 - 40.3iT - 5.04e3T^{2} \)
73 \( 1 + 78.5iT - 5.32e3T^{2} \)
79 \( 1 - 51.0T + 6.24e3T^{2} \)
83 \( 1 - 2.72T + 6.88e3T^{2} \)
89 \( 1 - 70.4iT - 7.92e3T^{2} \)
97 \( 1 + 3.44iT - 9.40e3T^{2} \)
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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

−11.55568958195088464265906298762, −10.74820121648690163699812083756, −9.672749068484966263193380892212, −8.595229407002906612878900068637, −7.964410474278609635622872181453, −6.17608038248609443742631091324, −5.30576213471870479352553976973, −4.08931521504574211871710363030, −2.95519425305292711617481044833, −0.089767550623255913970475763361, 1.78222536992214321262451007784, 3.68772097564330456928486313712, 4.84241693708613125158216523153, 6.58185488801996224868371203475, 7.16293800436035523365284498607, 7.984378780896775543073784400751, 9.195573657589996650929738624720, 10.71194463462243889743171183654, 11.25561288893850961263658525693, 12.30490416841092409143766239625

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