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deficient number

natural integer number for which the sum of its proper strict divisors (other than itself) is less than the number itself
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deficient number

Summary

deficient number ranks in the top 2% of general entities by monthly Wikipedia readership (50 views/month).[1]

Key Facts

  • deficient number is a type of positive integer[2].
  • deficient number's Commons category is recorded as Deficient number[3].
  • deficient number is the opposite of abundant number[4].
  • deficient number's maintained by WikiProject is recorded as WikiProject Mathematics[5].

Body

Definition and Type

deficient number is a type of positive integer[2]. It is the opposite of abundant number[4].

Why It Matters

deficient number ranks in the top 2% of general entities by monthly Wikipedia readership (50 views/month).[1] It has Wikipedia articles in 22 language editions, a strong signal of global cultural recognition.[6] It is known by 11 alternative names across languages and contexts.[7]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [6] ↑ . Wikidata sitelinks. wikidata.org.
  3. [7] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). deficient number. Retrieved April 10, 2026, from https://4ort.xyz/entity/deficient-number
MLA “deficient number.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/deficient-number.
BibTeX @misc{4ortxyz_deficient-number_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{deficient number}}, year = {2026}, url = {https://4ort.xyz/entity/deficient-number}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): deficient number — https://4ort.xyz/entity/deficient-number (retrieved 2026-04-10)

Canonical URL: https://4ort.xyz/entity/deficient-number · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 16d ago · KrBot bot · 2026-05-06 view diff on Wikidata ↗
    Subclass of → —
    Subclass of → positive integer
    Maintained by wikiproject → WikiProject Mathematics
    Aliases → —
    + 1 other property edited (see Wikidata diff for full list)
    "/* wbsetclaimvalue:1| */ [[Property:P279]]: [[Q16317911]], разрешение перенаправления / resolving redirect [[Q28920044]] → [[Q16317911]] ([[:toollabs:editgroups/b/KrBotResolvingRedirect/Q28920044_Q163"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.