Properties

Label 2-690-5.4-c1-0-15
Degree $2$
Conductor $690$
Sign $i$
Analytic cond. $5.50967$
Root an. cond. $2.34727$
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  i·2-s + i·3-s − 4-s + 2.23·5-s + 6-s − 4i·7-s + i·8-s − 9-s − 2.23i·10-s i·12-s − 2.47i·13-s − 4·14-s + 2.23i·15-s + 16-s − 2.47i·17-s + i·18-s + ⋯
L(s)  = 1  − 0.707i·2-s + 0.577i·3-s − 0.5·4-s + 0.999·5-s + 0.408·6-s − 1.51i·7-s + 0.353i·8-s − 0.333·9-s − 0.707i·10-s − 0.288i·12-s − 0.685i·13-s − 1.06·14-s + 0.577i·15-s + 0.250·16-s − 0.599i·17-s + 0.235i·18-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 690 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & i\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 690 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & i\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(690\)    =    \(2 \cdot 3 \cdot 5 \cdot 23\)
Sign: $i$
Analytic conductor: \(5.50967\)
Root analytic conductor: \(2.34727\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{690} (139, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 690,\ (\ :1/2),\ i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.11133 - 1.11133i\)
\(L(\frac12)\) \(\approx\) \(1.11133 - 1.11133i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + iT \)
3 \( 1 - iT \)
5 \( 1 - 2.23T \)
23 \( 1 + iT \)
good7 \( 1 + 4iT - 7T^{2} \)
11 \( 1 + 11T^{2} \)
13 \( 1 + 2.47iT - 13T^{2} \)
17 \( 1 + 2.47iT - 17T^{2} \)
19 \( 1 + 2T + 19T^{2} \)
29 \( 1 - 0.472T + 29T^{2} \)
31 \( 1 + 31T^{2} \)
37 \( 1 + 0.472iT - 37T^{2} \)
41 \( 1 - 10.9T + 41T^{2} \)
43 \( 1 - 43T^{2} \)
47 \( 1 + 4.94iT - 47T^{2} \)
53 \( 1 + 8.94iT - 53T^{2} \)
59 \( 1 - 6T + 59T^{2} \)
61 \( 1 + 0.472T + 61T^{2} \)
67 \( 1 - 4.94iT - 67T^{2} \)
71 \( 1 + 7.52T + 71T^{2} \)
73 \( 1 - 4.94iT - 73T^{2} \)
79 \( 1 + 12.4T + 79T^{2} \)
83 \( 1 - 1.52iT - 83T^{2} \)
89 \( 1 - 16.4T + 89T^{2} \)
97 \( 1 - 13.4iT - 97T^{2} \)
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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

−10.35467123035456369017867859923, −9.703086645708493788404450337458, −8.838604748751368389923133691715, −7.72831721545751071895742683872, −6.66566162665793563392587713721, −5.51196372421299521537249703708, −4.58035063864447824964024719523, −3.63777736224836835194064270189, −2.46049794526921777214325559907, −0.875261983224079283209916285389, 1.73598765195195748507591192369, 2.77488469192435916606173335376, 4.53755850466110474288282416697, 5.77203142946814098564198949489, 6.02348120811327928931288557028, 7.01130481048423436630545642232, 8.148102206270035950746413973406, 8.973616268598580389643748324345, 9.411903395146954339411520683415, 10.59174772233478092958376820289

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