Word Pronunciation & Dictionary

hexagonal number

Word Rarity Rare

Frequency: Zipf frequency 2.96 in modern English

Syllables: hexag-o-nal num-ber
IPA

30

Scrabble Score

15

Letters

4

Syllables

12

Unique Chars

Meaning

noun

The number of dots in a figure made up of partially overlapping dotted regular hexagons (6k dots arranged into a regular hexagon) of perimeter 6k for k = 1 ... n which grow out of a common vertex (and two shared or partially shared sides); a.k.a. “cornered hexagonal number”; H_n+1=6Δₙ-n²+1 where Δₙ denotes the nᵗʰ triangular number.

noun

The number of dots in a figure made up of regular dotted hexagons (of perimeter 6k for k = 1 ... n) arranged concentrically around an extra dot at their common center; a.k.a. “centered hexagonal number”; H_n+1=1+6Δₙ.

Inflected Forms

hexagonal numbers (plural)

Questions

What does hexagonal number mean?: The number of dots in a figure made up of partially overlapping dotted regular hexagons (6k dots arranged into a regular hexagon) of perimeter 6k for k = 1 ... n which grow out of a common vertex (and two shared or partially shared sides); a.k.a. “cornered hexagonal number”; H_n+1=6Δₙ-n²+1 where Δₙ denotes the nᵗʰ triangular number.

How to pronounce hexagonal number

Open the pronunciation page — Open the Speakur entry for “hexagonal number”.
Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
Play the audio — Click Play to hear reference audio for “hexagonal number”.
Repeat and practice — Say “hexagonal number” aloud, matching stress and vowels until it feels natural.