2151
The YM2151 is the FM sound chip behind many arcade machines.
- Odd
- Composite
Where 2151 fits
Why 2151 is special
It gave 1980s arcade cabinets a sound that home consoles could not match, which was part of what people paid a coin for.
2151 is part of
Factors & digit properties
- Divisors (6)
- 1, 3, 9, 239, 717, 2151
- Prime factorisation
- 3^2 × 239
- Digit sum
- 9
- Digital root
- 9
Representations
- Decimal
- 2151
- Binary
- 100001100111
- Octal
- 4147
- Hexadecimal
- 867
- Roman numeral
- MMCLI
- Scientific notation
- 2.151 × 10^3
Other mathematical patterns
- Deficient number
- Happy number
- Harshad (Niven) number
Related numbers & connections
Both are Yamaha FM chips; one defined arcade sound and the other a home console's.
View 2612 →OPL2 brought FM synthesis to PC sound cards, where compatibility with it became a purchasing requirement.
View 3812 →Media & popular culture
The YM2151 provides eight FM channels with four operators each and was widely used in arcade hardware and in early Japanese computer sound options.
DocumentedMedia & popular culturePeriod: 1984–
Common questions
Is 2151 a prime number?
No, 2151 is not prime.
What are the factors of 2151?
The factors of 2151 are 1, 3, 9, 239, 717, 2151.
What is 2151 in Roman numerals?
2151 in Roman numerals is MMCLI.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 1 reviewer-confirmed record, sourced and reviewed before publication.
Last reviewed: 3 August 2026