Properties

Label 2-2240-5.4-c1-0-31
Degree $2$
Conductor $2240$
Sign $-0.447 - 0.894i$
Analytic cond. $17.8864$
Root an. cond. $4.22924$
Motivic weight $1$
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 + (2 − i)5-s + i·7-s − 6·9-s + 3·11-s i·13-s + (3 + 6i)15-s + 5i·17-s + 8·19-s − 3·21-s − 2i·23-s + (3 − 4i)25-s − 9i·27-s − 29-s + 2·31-s + ⋯
L(s)  = 1  + 1.73i·3-s + (0.894 − 0.447i)5-s + 0.377i·7-s − 2·9-s + 0.904·11-s − 0.277i·13-s + (0.774 + 1.54i)15-s + 1.21i·17-s + 1.83·19-s − 0.654·21-s − 0.417i·23-s + (0.600 − 0.800i)25-s − 1.73i·27-s − 0.185·29-s + 0.359·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 2240 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.447 - 0.894i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 2240 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (-0.447 - 0.894i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(2240\)    =    \(2^{6} \cdot 5 \cdot 7\)
Sign: $-0.447 - 0.894i$
Analytic conductor: \(17.8864\)
Root analytic conductor: \(4.22924\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{2240} (449, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 2240,\ (\ :1/2),\ -0.447 - 0.894i)\)

Particular Values

\(L(1)\) \(\approx\) \(2.214331432\)
\(L(\frac12)\) \(\approx\) \(2.214331432\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
5 \( 1 + (-2 + i)T \)
7 \( 1 - iT \)
good3 \( 1 - 3iT - 3T^{2} \)
11 \( 1 - 3T + 11T^{2} \)
13 \( 1 + iT - 13T^{2} \)
17 \( 1 - 5iT - 17T^{2} \)
19 \( 1 - 8T + 19T^{2} \)
23 \( 1 + 2iT - 23T^{2} \)
29 \( 1 + T + 29T^{2} \)
31 \( 1 - 2T + 31T^{2} \)
37 \( 1 - 10iT - 37T^{2} \)
41 \( 1 + 6T + 41T^{2} \)
43 \( 1 + 4iT - 43T^{2} \)
47 \( 1 - 11iT - 47T^{2} \)
53 \( 1 + 6iT - 53T^{2} \)
59 \( 1 - 10T + 59T^{2} \)
61 \( 1 + 61T^{2} \)
67 \( 1 - 10iT - 67T^{2} \)
71 \( 1 + 71T^{2} \)
73 \( 1 + 10iT - 73T^{2} \)
79 \( 1 + 7T + 79T^{2} \)
83 \( 1 - 12iT - 83T^{2} \)
89 \( 1 + 8T + 89T^{2} \)
97 \( 1 + 3iT - 97T^{2} \)
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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

−9.444937754881889020976340612451, −8.743799939616966892473971278641, −8.174808188300188667863368179361, −6.69488843095879628863724483095, −5.83813556402404487514444157361, −5.27233249759591380841527085999, −4.53032506320539930054225881121, −3.64433858944728584870714096975, −2.81820823696117805048741695195, −1.36931380178288279734317856982, 0.850475093751458666498531711327, 1.68738533447412663463829885713, 2.63251548610733233969776936747, 3.55109348064170407627398046915, 5.14621923235676818267446416094, 5.82681068969927050468553979772, 6.68939003075776498415699966681, 7.16800269198948105149103308177, 7.63401815350136425103219077516, 8.806347243927272990309576059979

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