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Date: 29-12-2019
657
Date: 20-12-2020
796
Date: 1-1-2020
617
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A composite number defined analogously to a Smith number except that the sum of the number's digits equals the sum of the digits of its distinct prime factors (excluding 1).
The first few hoax numbers are 22, 58, 84, 85, 94, 136, 160, 166, 202, 234, ... (OEIS A019506), illustrated above as a binary plot, and the corresponding sums of digits are 4, 13, 12, 13, 13, 10, 7, 13, 4, 9, 7, ... (OEIS A050223).
REFERENCES:
Sloane, N. J. A. Sequences A019506 and A050223 in "The On-Line Encyclopedia of Integer Sequences."
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"عادة ليلية" قد تكون المفتاح للوقاية من الخرف
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ممتص الصدمات: طريقة عمله وأهميته وأبرز علامات تلفه
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المجمع العلمي للقرآن الكريم يقيم جلسة حوارية لطلبة جامعة الكوفة
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