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Weird number: Standards, Properties & Examples

In number theory, a weird number is a natural number that is abundant but not semiperfect. In other words, the sum of the proper divisors (divisors including 1 but not itself) of the number is greater than the number, but no subset of those divisors sums to the number itself.

Language: English [EN]
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Weird number topic overview

The analysis highlights Standards, Properties and Examples as prominent areas in the source structure around Weird number.

Related topics
20
Source areas
3
Connected nodes
23
Extracted relationships
23
Concept neighborhoods
12
Bridge connections
23

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Properties · 10 topics
Overview · 7 topics
Examples · 3 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

Examples

  • 70 70 (number)
  • 836 836 (number)
  • OEIS On-Line Encyclopedia of Integer Sequences

Properties

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How Weird number connects Entity context

The extracted context around Weird number shows recurring relationship patterns in the source. For example, Weird number → A002975, Among, Cramér's, It, Kravitz, Melfi, OEIS, Primitive, The, This Another extracted example is Weird number → Eric, Mathematics, MathWorld, Weird, Weisstein. Use these groups to spot repeated connection types before inspecting the individual relationships.

Weird number

Top relations

related to Primitive weird numbers · 10
Weird number → A002975, Among, Cramér's, It, Kravitz, Melfi, OEIS, Primitive, The, This
related to External links · 5
Weird number → Eric, Mathematics, MathWorld, Weird, Weisstein
related to Properties · 5
Weird number → For, If, In, Infinitely, It
related to Examples · 2
Weird number → Its, The
is a · 1
Weird number → natural number that is abundant but not semiperfect

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

weird numbers number primitive divisors sum greater many prime proper also abundant subset infinitely exist sums 70 semiperfect example 16

Weird number relationships Subject–Predicate–Object triples

TTTA extracted 23 structured relationships around Weird number. Examples in this analysis include Weird number → is a → natural number that is abundant but not semiperfect and Weird number → related to Examples → The. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Weird numberis anatural number that is abundant but not semiperfect0.90text
Weird numberrelated to ExamplesThe0.60section
Weird numberrelated to ExamplesIts0.60section
Weird numberrelated to External linksMathematics0.60section
Weird numberrelated to External linksWeisstein0.60section
Weird numberrelated to External linksEric0.60section
Weird numberrelated to External linksWeird0.60section
Weird numberrelated to External linksMathWorld0.60section
Weird numberrelated to Primitive weird numbersThis0.60section
Weird numberrelated to Primitive weird numbersA0029750.60section
Weird numberrelated to Primitive weird numbersOEIS0.60section
Weird numberrelated to Primitive weird numbersAmong0.60section

Related concept clusters Concept neighborhoods

The concept neighborhoods around Weird number bring nearby vocabulary together. In this analysis, examples include Numbers, Primitive and Number. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Weird number
    • Numbers
    • Primitive
    • Number
    • Weird
    • Many
    • Prime
    • Proper
    • Also
    • Exist
    • Infinitely
    • Including
    • References
  • weird number
    • Numbers
    • Also
    • Primitive
    • Divisors
    • Greater
    • Number
    • Sum
    • Weird
    • Abundant
    • Many
    • Prime
    • Proper
  • number theory
    • Semiperfect
    • Also
    • Divisors
    • Greater
    • Sum
    • Weird
    • Abundant
    • Proper
    • Prime
    • Examples
    • External
    • Including
  • natural number
    • Semiperfect
    • Theory
    • Abundant
    • Also
    • Divisors
    • Greater
    • Sum
    • Weird
    • Proper
    • Prime
    • Examples
    • External
  • proper divisors
    • Sum
    • Divisors
    • Proper
    • Subset
    • Sums
    • Number
    • Greater
    • Including
    • Words
    • Example
    • Found
    • Also
  • sum of divisors
    • Divisors
    • Sum
    • Proper
    • Subset
    • Sums
    • Number
    • Greater
    • Including
    • Words
    • Example
    • Found
    • Also
  • divisors
    • Sum
    • Proper
    • Subset
    • Sums
    • Number
    • Greater
    • Including
    • Words
    • Example
    • Found
    • Also
    • Prime
  • examples
    • External
    • Links
    • Properties
    • References
    • See
    • Also
    • Primitive
    • Number
    • Numbers
    • Weird

Connections between topic areas Semantic bridges

For Weird number, one of the stronger structural bridges in this analysis connects Weird number with Properties. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
Weird number — Properties · splits 13 ⟂ 11
Weird number — Overview · splits 16 ⟂ 8
Weird number — Examples · splits 20 ⟂ 4

Map overview Semantic statistics

Weird number

Nodes24
Edges23
Triples23
Avg. degree1.92
Density0.083333
Components1

Source & methodology

TTTA analyzes the structure around Weird number to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Standards, Properties & Examples, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Weird number · EN edition · Analysis: TopicsToTalkAbout

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