Properties

Label 2-240-5.4-c3-0-11
Degree $2$
Conductor $240$
Sign $0.894 + 0.447i$
Analytic cond. $14.1604$
Root an. cond. $3.76303$
Motivic weight $3$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 3i·3-s + (5 − 10i)5-s + 4i·7-s − 9·9-s + 28·11-s − 16i·13-s + (30 + 15i)15-s − 108i·17-s + 32·19-s − 12·21-s + 28i·23-s + (−75 − 100i)25-s − 27i·27-s + 238·29-s + 180·31-s + ⋯
L(s)  = 1  + 0.577i·3-s + (0.447 − 0.894i)5-s + 0.215i·7-s − 0.333·9-s + 0.767·11-s − 0.341i·13-s + (0.516 + 0.258i)15-s − 1.54i·17-s + 0.386·19-s − 0.124·21-s + 0.253i·23-s + (−0.599 − 0.800i)25-s − 0.192i·27-s + 1.52·29-s + 1.04·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 240 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.894 + 0.447i)\, \overline{\Lambda}(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 240 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & (0.894 + 0.447i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(240\)    =    \(2^{4} \cdot 3 \cdot 5\)
Sign: $0.894 + 0.447i$
Analytic conductor: \(14.1604\)
Root analytic conductor: \(3.76303\)
Motivic weight: \(3\)
Rational: no
Arithmetic: yes
Character: $\chi_{240} (49, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 240,\ (\ :3/2),\ 0.894 + 0.447i)\)

Particular Values

\(L(2)\) \(\approx\) \(1.90022 - 0.448582i\)
\(L(\frac12)\) \(\approx\) \(1.90022 - 0.448582i\)
\(L(\frac{5}{2})\) 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 \( 1 - 3iT \)
5 \( 1 + (-5 + 10i)T \)
good7 \( 1 - 4iT - 343T^{2} \)
11 \( 1 - 28T + 1.33e3T^{2} \)
13 \( 1 + 16iT - 2.19e3T^{2} \)
17 \( 1 + 108iT - 4.91e3T^{2} \)
19 \( 1 - 32T + 6.85e3T^{2} \)
23 \( 1 - 28iT - 1.21e4T^{2} \)
29 \( 1 - 238T + 2.43e4T^{2} \)
31 \( 1 - 180T + 2.97e4T^{2} \)
37 \( 1 - 40iT - 5.06e4T^{2} \)
41 \( 1 - 422T + 6.89e4T^{2} \)
43 \( 1 + 276iT - 7.95e4T^{2} \)
47 \( 1 - 60iT - 1.03e5T^{2} \)
53 \( 1 - 220iT - 1.48e5T^{2} \)
59 \( 1 + 804T + 2.05e5T^{2} \)
61 \( 1 + 358T + 2.26e5T^{2} \)
67 \( 1 + 884iT - 3.00e5T^{2} \)
71 \( 1 - 64T + 3.57e5T^{2} \)
73 \( 1 + 152iT - 3.89e5T^{2} \)
79 \( 1 + 932T + 4.93e5T^{2} \)
83 \( 1 - 1.29e3iT - 5.71e5T^{2} \)
89 \( 1 - 1.14e3T + 7.04e5T^{2} \)
97 \( 1 + 824iT - 9.12e5T^{2} \)
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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

−11.79375861184102756700748526799, −10.52825044424822434810864330674, −9.477212736153836855739827678743, −9.005167162089953398063169195783, −7.80560201457035987215768291110, −6.35512758739217660217845337291, −5.24330595345181253775667435599, −4.36599882740992326790353609372, −2.77595394874203796839200201053, −0.916639085499223016696018984617, 1.38914783662101250070884485951, 2.80950935318641307171717475215, 4.21969795498280073977727278028, 6.00837591776011731007855101178, 6.58661833916476965887301379413, 7.66685553852563841546974788215, 8.781598239961430720847544262961, 9.958149482380564699630390111721, 10.79591764249374451171075920018, 11.76327068350993535229702077340

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