Properties

Label 2-240-15.14-c6-0-16
Degree $2$
Conductor $240$
Sign $1$
Analytic cond. $55.2129$
Root an. cond. $7.43054$
Motivic weight $6$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 27·3-s − 125·5-s + 729·9-s + 3.37e3·15-s − 9.39e3·17-s − 1.31e4·19-s − 1.46e4·23-s + 1.56e4·25-s − 1.96e4·27-s + 5.75e3·31-s − 9.11e4·45-s + 9.00e4·47-s + 1.17e5·49-s + 2.53e5·51-s − 8.86e4·53-s + 3.55e5·57-s − 3.25e5·61-s + 3.95e5·69-s − 4.21e5·75-s + 8.93e5·79-s + 5.31e5·81-s + 4.69e5·83-s + 1.17e6·85-s − 1.55e5·93-s + 1.64e6·95-s − 2.44e6·107-s + 7.73e5·109-s + ⋯
L(s)  = 1  − 3-s − 5-s + 9-s + 15-s − 1.91·17-s − 1.92·19-s − 1.20·23-s + 25-s − 27-s + 0.193·31-s − 45-s + 0.867·47-s + 49-s + 1.91·51-s − 0.595·53-s + 1.92·57-s − 1.43·61-s + 1.20·69-s − 75-s + 1.81·79-s + 81-s + 0.821·83-s + 1.91·85-s − 0.193·93-s + 1.92·95-s − 1.99·107-s + 0.597·109-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 240 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(7-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 240 ^{s/2} \, \Gamma_{\C}(s+3) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(240\)    =    \(2^{4} \cdot 3 \cdot 5\)
Sign: $1$
Analytic conductor: \(55.2129\)
Root analytic conductor: \(7.43054\)
Motivic weight: \(6\)
Rational: yes
Arithmetic: yes
Character: $\chi_{240} (209, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 240,\ (\ :3),\ 1)\)

Particular Values

\(L(\frac{7}{2})\) \(\approx\) \(0.4593374649\)
\(L(\frac12)\) \(\approx\) \(0.4593374649\)
\(L(4)\) 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 \( 1 + p^{3} T \)
5 \( 1 + p^{3} T \)
good7 \( ( 1 - p^{3} T )( 1 + p^{3} T ) \)
11 \( ( 1 - p^{3} T )( 1 + p^{3} T ) \)
13 \( ( 1 - p^{3} T )( 1 + p^{3} T ) \)
17 \( 1 + 9394 T + p^{6} T^{2} \)
19 \( 1 + 13178 T + p^{6} T^{2} \)
23 \( 1 + 14654 T + p^{6} T^{2} \)
29 \( ( 1 - p^{3} T )( 1 + p^{3} T ) \)
31 \( 1 - 5758 T + p^{6} T^{2} \)
37 \( ( 1 - p^{3} T )( 1 + p^{3} T ) \)
41 \( ( 1 - p^{3} T )( 1 + p^{3} T ) \)
43 \( ( 1 - p^{3} T )( 1 + p^{3} T ) \)
47 \( 1 - 90034 T + p^{6} T^{2} \)
53 \( 1 + 88666 T + p^{6} T^{2} \)
59 \( ( 1 - p^{3} T )( 1 + p^{3} T ) \)
61 \( 1 + 325798 T + p^{6} T^{2} \)
67 \( ( 1 - p^{3} T )( 1 + p^{3} T ) \)
71 \( ( 1 - p^{3} T )( 1 + p^{3} T ) \)
73 \( ( 1 - p^{3} T )( 1 + p^{3} T ) \)
79 \( 1 - 893662 T + p^{6} T^{2} \)
83 \( 1 - 469546 T + p^{6} T^{2} \)
89 \( ( 1 - p^{3} T )( 1 + p^{3} T ) \)
97 \( ( 1 - p^{3} T )( 1 + p^{3} T ) \)
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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

−10.99687310184002560029119318048, −10.54972945291726736644481536933, −9.066957402883309134609795447632, −8.053734064161851765726803437139, −6.88853197818849542369345216128, −6.14089651088027346183299567929, −4.61964481046968679719597776063, −4.03717559707484910111162689304, −2.10871483972589374433328740646, −0.37411264935240343753979239172, 0.37411264935240343753979239172, 2.10871483972589374433328740646, 4.03717559707484910111162689304, 4.61964481046968679719597776063, 6.14089651088027346183299567929, 6.88853197818849542369345216128, 8.053734064161851765726803437139, 9.066957402883309134609795447632, 10.54972945291726736644481536933, 10.99687310184002560029119318048

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