Properties

Label 2-38640-1.1-c1-0-3
Degree $2$
Conductor $38640$
Sign $1$
Analytic cond. $308.541$
Root an. cond. $17.5653$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 3-s + 5-s − 7-s + 9-s − 6·13-s + 15-s − 6·17-s − 4·19-s − 21-s − 23-s + 25-s + 27-s − 6·29-s − 35-s − 10·37-s − 6·39-s + 2·41-s + 8·43-s + 45-s − 8·47-s + 49-s − 6·51-s − 10·53-s − 4·57-s + 4·59-s + 14·61-s − 63-s + ⋯
L(s)  = 1  + 0.577·3-s + 0.447·5-s − 0.377·7-s + 1/3·9-s − 1.66·13-s + 0.258·15-s − 1.45·17-s − 0.917·19-s − 0.218·21-s − 0.208·23-s + 1/5·25-s + 0.192·27-s − 1.11·29-s − 0.169·35-s − 1.64·37-s − 0.960·39-s + 0.312·41-s + 1.21·43-s + 0.149·45-s − 1.16·47-s + 1/7·49-s − 0.840·51-s − 1.37·53-s − 0.529·57-s + 0.520·59-s + 1.79·61-s − 0.125·63-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 38640 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 38640 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(38640\)    =    \(2^{4} \cdot 3 \cdot 5 \cdot 7 \cdot 23\)
Sign: $1$
Analytic conductor: \(308.541\)
Root analytic conductor: \(17.5653\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 38640,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(1.224940254\)
\(L(\frac12)\) \(\approx\) \(1.224940254\)
\(L(\frac{3}{2})\) 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 \( 1 - T \)
5 \( 1 - T \)
7 \( 1 + T \)
23 \( 1 + T \)
good11 \( 1 + p T^{2} \)
13 \( 1 + 6 T + p T^{2} \)
17 \( 1 + 6 T + p T^{2} \)
19 \( 1 + 4 T + p T^{2} \)
29 \( 1 + 6 T + p T^{2} \)
31 \( 1 + p T^{2} \)
37 \( 1 + 10 T + p T^{2} \)
41 \( 1 - 2 T + p T^{2} \)
43 \( 1 - 8 T + p T^{2} \)
47 \( 1 + 8 T + p T^{2} \)
53 \( 1 + 10 T + p T^{2} \)
59 \( 1 - 4 T + p T^{2} \)
61 \( 1 - 14 T + p T^{2} \)
67 \( 1 - 16 T + p T^{2} \)
71 \( 1 - 12 T + p T^{2} \)
73 \( 1 + 14 T + p T^{2} \)
79 \( 1 - 8 T + p T^{2} \)
83 \( 1 + 4 T + p T^{2} \)
89 \( 1 - 14 T + p T^{2} \)
97 \( 1 - 14 T + p T^{2} \)
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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

−14.69974509363661, −14.40964162808636, −13.85969676037701, −13.05181382934663, −12.96402078264686, −12.39883693904775, −11.72717034627495, −11.06656159142028, −10.54889048687470, −9.979636075372653, −9.417433392452602, −9.142910662530708, −8.443793486134154, −7.884297512062349, −7.201754735703806, −6.706940361896043, −6.308482178109143, −5.278619978035986, −4.987053555323548, −4.128410331218601, −3.667116931190510, −2.659777680774577, −2.277011773131961, −1.734623837779627, −0.3597869941757106, 0.3597869941757106, 1.734623837779627, 2.277011773131961, 2.659777680774577, 3.667116931190510, 4.128410331218601, 4.987053555323548, 5.278619978035986, 6.308482178109143, 6.706940361896043, 7.201754735703806, 7.884297512062349, 8.443793486134154, 9.142910662530708, 9.417433392452602, 9.979636075372653, 10.54889048687470, 11.06656159142028, 11.72717034627495, 12.39883693904775, 12.96402078264686, 13.05181382934663, 13.85969676037701, 14.40964162808636, 14.69974509363661

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