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Date: 30-5-2020
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Date: 6-9-2020
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Date: 2-4-2020
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A Belphegor number (also known as a Beelphegor number or a beastly palindromic prime) is a palindromic number of the form . Numbers of this form are named after the demon Belphegor (or Beelphegor), one of the seven princes of Hell and the demon of inventiveness. The th Belphegor number is given by
giving the first few numbers for , 1, ... as 16661, 1066601, 100666001, 10006660001, 1000066600001, ... (OEIS A232449).
A prime Belphegor number is known as a Belphegor prime.
REFERENCES:
Pickover, C. "Belphegor's Prime: 1000000000000066600000000000001." http://sprott.physics.wisc.edu/pickover/pc/1000000000000066600000000000001.html.
Sloane, N. J. A. Sequence A232449 in "The On-Line Encyclopedia of Integer Sequences."
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مخاطر خفية لمكون شائع في مشروبات الطاقة والمكملات الغذائية
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"آبل" تشغّل نظامها الجديد للذكاء الاصطناعي على أجهزتها
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تستخدم لأول مرة... مستشفى الإمام زين العابدين (ع) التابع للعتبة الحسينية يعتمد تقنيات حديثة في تثبيت الكسور المعقدة
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