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- Harmonic_divisor_number abstract "In mathematics, a harmonic divisor number, or Ore number (named after Øystein Ore who defined it in 1948), is a positive integer whose divisors have a harmonic mean that is an integer. The first few harmonic divisor numbers are1, 6, 28, 140, 270, 496, 672, 1638, 2970, 6200, 8128, 8190 (sequence A001599 in OEIS).For example, the harmonic divisor number 6 has the four divisors 1, 2, 3, and 6. Their harmonic mean is an integer:The number 140 has divisors 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, and 140. Their harmonic mean is:5 is an integer, making 140 a harmonic divisor number.".
- Harmonic_divisor_number wikiPageExternalLink S0025-5718-97-00819-3.pdf.
- Harmonic_divisor_number wikiPageExternalLink average.shtml.
- Harmonic_divisor_number wikiPageExternalLink harmonic-e.html.
- Harmonic_divisor_number wikiPageID "462698".
- Harmonic_divisor_number wikiPageRevisionID "576403694".
- Harmonic_divisor_number hasPhotoCollection Harmonic_divisor_number.
- Harmonic_divisor_number title "Harmonic Divisor Number".
- Harmonic_divisor_number urlname "HarmonicDivisorNumber".
- Harmonic_divisor_number subject Category:Divisor_function.
- Harmonic_divisor_number subject Category:Integer_sequences.
- Harmonic_divisor_number subject Category:Number_theory.
- Harmonic_divisor_number type Abstraction100002137.
- Harmonic_divisor_number type Arrangement107938773.
- Harmonic_divisor_number type Group100031264.
- Harmonic_divisor_number type IntegerSequences.
- Harmonic_divisor_number type Ordering108456993.
- Harmonic_divisor_number type Sequence108459252.
- Harmonic_divisor_number type Series108457976.
- Harmonic_divisor_number comment "In mathematics, a harmonic divisor number, or Ore number (named after Øystein Ore who defined it in 1948), is a positive integer whose divisors have a harmonic mean that is an integer. The first few harmonic divisor numbers are1, 6, 28, 140, 270, 496, 672, 1638, 2970, 6200, 8128, 8190 (sequence A001599 in OEIS).For example, the harmonic divisor number 6 has the four divisors 1, 2, 3, and 6.".
- Harmonic_divisor_number label "Harmonic divisor number".
- Harmonic_divisor_number label "Harmonisch-delergetal".
- Harmonic_divisor_number label "Liczby harmoniczne".
- Harmonic_divisor_number label "Nombre à moyenne harmonique entière".
- Harmonic_divisor_number label "Numero armonico".
- Harmonic_divisor_number label "Гармоническое число".
- Harmonic_divisor_number label "歐爾調和數".
- Harmonic_divisor_number label "調和数".
- Harmonic_divisor_number sameAs Nombre_à_moyenne_harmonique_entière.
- Harmonic_divisor_number sameAs Numero_armonico.
- Harmonic_divisor_number sameAs 調和数.
- Harmonic_divisor_number sameAs Harmonisch-delergetal.
- Harmonic_divisor_number sameAs Liczby_harmoniczne.
- Harmonic_divisor_number sameAs m.02chc6.
- Harmonic_divisor_number sameAs Q60679.
- Harmonic_divisor_number sameAs Q60679.
- Harmonic_divisor_number sameAs Harmonic_divisor_number.
- Harmonic_divisor_number wasDerivedFrom Harmonic_divisor_number?oldid=576403694.
- Harmonic_divisor_number isPrimaryTopicOf Harmonic_divisor_number.