Properties

Label 16-1575e8-1.1-c0e8-0-2
Degree $16$
Conductor $3.787\times 10^{25}$
Sign $1$
Analytic cond. $0.145714$
Root an. cond. $0.886581$
Motivic weight $0$
Arithmetic yes
Rational yes
Primitive no
Self-dual yes
Analytic rank $0$

Origins

Origins of factors

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Normalization:  

Dirichlet series

L(s)  = 1  − 4·2-s + 8·4-s − 8·8-s − 2·16-s + 4·23-s + 20·32-s − 16·46-s − 8·53-s − 32·64-s + 32·92-s + 32·106-s + 8·107-s − 4·113-s + 127-s + 20·128-s + 131-s + 137-s + 139-s + 149-s + 151-s + 157-s + 163-s + 167-s + 173-s + 179-s + 181-s − 32·184-s + ⋯
L(s)  = 1  − 4·2-s + 8·4-s − 8·8-s − 2·16-s + 4·23-s + 20·32-s − 16·46-s − 8·53-s − 32·64-s + 32·92-s + 32·106-s + 8·107-s − 4·113-s + 127-s + 20·128-s + 131-s + 137-s + 139-s + 149-s + 151-s + 157-s + 163-s + 167-s + 173-s + 179-s + 181-s − 32·184-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut &\left(3^{16} \cdot 5^{16} \cdot 7^{8}\right)^{s/2} \, \Gamma_{\C}(s)^{8} \, L(s)\cr=\mathstrut & \,\Lambda(1-s)\end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut &\left(3^{16} \cdot 5^{16} \cdot 7^{8}\right)^{s/2} \, \Gamma_{\C}(s)^{8} \, L(s)\cr=\mathstrut & \,\Lambda(1-s)\end{aligned}\]

Invariants

Degree: \(16\)
Conductor: \(3^{16} \cdot 5^{16} \cdot 7^{8}\)
Sign: $1$
Analytic conductor: \(0.145714\)
Root analytic conductor: \(0.886581\)
Motivic weight: \(0\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: no
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((16,\ 3^{16} \cdot 5^{16} \cdot 7^{8} ,\ ( \ : [0]^{8} ),\ 1 )\)

Particular Values

\(L(\frac{1}{2})\) \(\approx\) \(0.09527299809\)
\(L(\frac12)\) \(\approx\) \(0.09527299809\)
\(L(1)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 \)
5 \( 1 \)
7 \( ( 1 + T^{4} )^{2} \)
good2 \( ( 1 + T + T^{2} )^{4}( 1 - T^{2} + T^{4} )^{2} \)
11 \( ( 1 - T^{4} + T^{8} )^{2} \)
13 \( ( 1 + T^{4} )^{4} \)
17 \( ( 1 + T^{4} )^{4} \)
19 \( ( 1 + T^{2} )^{8} \)
23 \( ( 1 - T + T^{2} )^{4}( 1 - T^{2} + T^{4} )^{2} \)
29 \( ( 1 - T^{4} + T^{8} )^{2} \)
31 \( ( 1 - T )^{8}( 1 + T )^{8} \)
37 \( ( 1 - T^{4} + T^{8} )^{2} \)
41 \( ( 1 + T^{2} )^{8} \)
43 \( ( 1 - T^{4} + T^{8} )^{2} \)
47 \( ( 1 + T^{4} )^{4} \)
53 \( ( 1 + T )^{8}( 1 + T^{2} )^{4} \)
59 \( ( 1 - T )^{8}( 1 + T )^{8} \)
61 \( ( 1 - T )^{8}( 1 + T )^{8} \)
67 \( ( 1 - T^{4} + T^{8} )^{2} \)
71 \( ( 1 - T^{4} + T^{8} )^{2} \)
73 \( ( 1 + T^{4} )^{4} \)
79 \( ( 1 - T^{2} + T^{4} )^{4} \)
83 \( ( 1 + T^{4} )^{4} \)
89 \( ( 1 - T )^{8}( 1 + T )^{8} \)
97 \( ( 1 + T^{4} )^{4} \)
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   \(L(s) = \displaystyle\prod_p \ \prod_{j=1}^{16} (1 - \alpha_{j,p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−4.28736615428135818115492047015, −4.07683681254580985032185196946, −3.92670879058723171195278808026, −3.79161089902089641625625424940, −3.60518447905527237955920397297, −3.48512638490808730413728705295, −3.40389665926964421697743674206, −3.36487174547964856459707515691, −3.04164116748702008826977240626, −2.96577581991373207098789945165, −2.88680937668118379592671039789, −2.63269229092988112320683725222, −2.51670352312665363395238879815, −2.45945762114848560825649365176, −2.35138953418986841020647102354, −1.93768012058986991320882912297, −1.85569189072496565439326249440, −1.74940398504564107309680385852, −1.58762772048819548559872769886, −1.55719241926109969703529944622, −1.29994934193556921827966284901, −1.29118949503361770277262403942, −0.921860638322947005572199690746, −0.861828767446607314889184561646, −0.35181967421435186547135899248, 0.35181967421435186547135899248, 0.861828767446607314889184561646, 0.921860638322947005572199690746, 1.29118949503361770277262403942, 1.29994934193556921827966284901, 1.55719241926109969703529944622, 1.58762772048819548559872769886, 1.74940398504564107309680385852, 1.85569189072496565439326249440, 1.93768012058986991320882912297, 2.35138953418986841020647102354, 2.45945762114848560825649365176, 2.51670352312665363395238879815, 2.63269229092988112320683725222, 2.88680937668118379592671039789, 2.96577581991373207098789945165, 3.04164116748702008826977240626, 3.36487174547964856459707515691, 3.40389665926964421697743674206, 3.48512638490808730413728705295, 3.60518447905527237955920397297, 3.79161089902089641625625424940, 3.92670879058723171195278808026, 4.07683681254580985032185196946, 4.28736615428135818115492047015

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

Plot not available for L-functions of degree greater than 10.