Properties

Label 2-38640-1.1-c1-0-20
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 + 2·13-s − 15-s + 4·19-s + 21-s + 23-s + 25-s − 27-s + 4·31-s − 35-s + 2·37-s − 2·39-s + 12·41-s + 4·43-s + 45-s − 12·47-s + 49-s − 4·57-s − 12·59-s + 14·61-s − 63-s + 2·65-s + 4·67-s − 69-s + ⋯
L(s)  = 1  − 0.577·3-s + 0.447·5-s − 0.377·7-s + 1/3·9-s + 0.554·13-s − 0.258·15-s + 0.917·19-s + 0.218·21-s + 0.208·23-s + 1/5·25-s − 0.192·27-s + 0.718·31-s − 0.169·35-s + 0.328·37-s − 0.320·39-s + 1.87·41-s + 0.609·43-s + 0.149·45-s − 1.75·47-s + 1/7·49-s − 0.529·57-s − 1.56·59-s + 1.79·61-s − 0.125·63-s + 0.248·65-s + 0.488·67-s − 0.120·69-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

\(L(1)\) \(\approx\) \(2.260191986\)
\(L(\frac12)\) \(\approx\) \(2.260191986\)
\(L(\frac{3}{2})\) 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 \( 1 - 2 T + p T^{2} \)
17 \( 1 + p T^{2} \)
19 \( 1 - 4 T + p T^{2} \)
29 \( 1 + p T^{2} \)
31 \( 1 - 4 T + p T^{2} \)
37 \( 1 - 2 T + p T^{2} \)
41 \( 1 - 12 T + p T^{2} \)
43 \( 1 - 4 T + p T^{2} \)
47 \( 1 + 12 T + p T^{2} \)
53 \( 1 + p T^{2} \)
59 \( 1 + 12 T + p T^{2} \)
61 \( 1 - 14 T + p T^{2} \)
67 \( 1 - 4 T + p T^{2} \)
71 \( 1 - 12 T + p T^{2} \)
73 \( 1 + 4 T + p T^{2} \)
79 \( 1 + 8 T + p T^{2} \)
83 \( 1 + p T^{2} \)
89 \( 1 - 6 T + p T^{2} \)
97 \( 1 + 10 T + p T^{2} \)
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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

−14.74470138409163, −14.25100382794982, −13.80109199499849, −13.12396325639588, −12.83203210575365, −12.26969995716338, −11.54948471958486, −11.24659893063905, −10.63552100635406, −10.07440641346624, −9.489018797657130, −9.232894822008397, −8.331851797160352, −7.869676484755227, −7.118759588543026, −6.639067339653344, −5.988561661442570, −5.662896354306327, −4.904632996709151, −4.354708281065519, −3.558469409625235, −2.941368370835578, −2.168682648968459, −1.251361259086399, −0.6354819882324166, 0.6354819882324166, 1.251361259086399, 2.168682648968459, 2.941368370835578, 3.558469409625235, 4.354708281065519, 4.904632996709151, 5.662896354306327, 5.988561661442570, 6.639067339653344, 7.118759588543026, 7.869676484755227, 8.331851797160352, 9.232894822008397, 9.489018797657130, 10.07440641346624, 10.63552100635406, 11.24659893063905, 11.54948471958486, 12.26969995716338, 12.83203210575365, 13.12396325639588, 13.80109199499849, 14.25100382794982, 14.74470138409163

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