Properties

Label 2-240-1.1-c3-0-0
Degree $2$
Conductor $240$
Sign $1$
Analytic cond. $14.1604$
Root an. cond. $3.76303$
Motivic weight $3$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 3·3-s − 5·5-s − 20·7-s + 9·9-s − 16·11-s + 58·13-s + 15·15-s + 38·17-s − 4·19-s + 60·21-s + 80·23-s + 25·25-s − 27·27-s + 82·29-s + 8·31-s + 48·33-s + 100·35-s + 426·37-s − 174·39-s − 246·41-s + 524·43-s − 45·45-s + 464·47-s + 57·49-s − 114·51-s − 702·53-s + 80·55-s + ⋯
L(s)  = 1  − 0.577·3-s − 0.447·5-s − 1.07·7-s + 1/3·9-s − 0.438·11-s + 1.23·13-s + 0.258·15-s + 0.542·17-s − 0.0482·19-s + 0.623·21-s + 0.725·23-s + 1/5·25-s − 0.192·27-s + 0.525·29-s + 0.0463·31-s + 0.253·33-s + 0.482·35-s + 1.89·37-s − 0.714·39-s − 0.937·41-s + 1.85·43-s − 0.149·45-s + 1.44·47-s + 0.166·49-s − 0.313·51-s − 1.81·53-s + 0.196·55-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 240 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 240 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(240\)    =    \(2^{4} \cdot 3 \cdot 5\)
Sign: $1$
Analytic conductor: \(14.1604\)
Root analytic conductor: \(3.76303\)
Motivic weight: \(3\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 240,\ (\ :3/2),\ 1)\)

Particular Values

\(L(2)\) \(\approx\) \(1.130764439\)
\(L(\frac12)\) \(\approx\) \(1.130764439\)
\(L(\frac{5}{2})\) 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 \( 1 + p T \)
5 \( 1 + p T \)
good7 \( 1 + 20 T + p^{3} T^{2} \)
11 \( 1 + 16 T + p^{3} T^{2} \)
13 \( 1 - 58 T + p^{3} T^{2} \)
17 \( 1 - 38 T + p^{3} T^{2} \)
19 \( 1 + 4 T + p^{3} T^{2} \)
23 \( 1 - 80 T + p^{3} T^{2} \)
29 \( 1 - 82 T + p^{3} T^{2} \)
31 \( 1 - 8 T + p^{3} T^{2} \)
37 \( 1 - 426 T + p^{3} T^{2} \)
41 \( 1 + 6 p T + p^{3} T^{2} \)
43 \( 1 - 524 T + p^{3} T^{2} \)
47 \( 1 - 464 T + p^{3} T^{2} \)
53 \( 1 + 702 T + p^{3} T^{2} \)
59 \( 1 - 592 T + p^{3} T^{2} \)
61 \( 1 - 574 T + p^{3} T^{2} \)
67 \( 1 - 172 T + p^{3} T^{2} \)
71 \( 1 + 768 T + p^{3} T^{2} \)
73 \( 1 + 558 T + p^{3} T^{2} \)
79 \( 1 + 408 T + p^{3} T^{2} \)
83 \( 1 + 164 T + p^{3} T^{2} \)
89 \( 1 + 510 T + p^{3} T^{2} \)
97 \( 1 - 514 T + p^{3} T^{2} \)
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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

−11.61767311802924194615316149855, −10.79914480136213803587794293965, −9.880781594903144232539246274705, −8.799158720449665106047987075198, −7.61949523459759201095700230541, −6.51492037772326375473340828650, −5.66222665862326049535392833246, −4.20558789024009583692336867329, −3.01112727604601173818999619452, −0.806760526594359469072808599839, 0.806760526594359469072808599839, 3.01112727604601173818999619452, 4.20558789024009583692336867329, 5.66222665862326049535392833246, 6.51492037772326375473340828650, 7.61949523459759201095700230541, 8.799158720449665106047987075198, 9.880781594903144232539246274705, 10.79914480136213803587794293965, 11.61767311802924194615316149855

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