Word.ws English Dictionary

friendly number

friendly number noun: a number that shares its abundancy with another positive integer.

Noun

friendly number (plural friendly numbers)

  1. A number that shares its abundancy with another positive integer.
    • The number 30 is a friendly number because both 30 and 140 have an abundancy index of 2.4.

Forms of friendly number

pluralfriendly numbers

Questions about friendly number

What does friendly number mean?
Friendly number means a number that shares its abundancy with another positive integer.
What part of speech is friendly number?
Friendly number is a noun.
What is the plural of friendly number?
The plural of friendly number is friendly numbers.

Words near friendly number in the dictionary

  1. friendly leads
  2. friendly match
  3. friendly matches
  4. friendly name
  5. friendly names
  6. friendly number
  7. friendly numbers
  8. friendly societies
  9. friendly society
  10. friendly suit
  11. friendly suits

Source and license

Adapted from Wiktionary: friendly number (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “friendly number.” Word.ws, https://word.ws/friendly_number. Based on Wiktionary, CC BY-SA 4.0.