8580
The 8580 is the revised SID chip.
- Even
- Composite
Where 8580 fits
Why 8580 is special
Its filter behaved as the datasheet described, which fixed the inconsistency and, in the view of much of the demoscene, removed the character along with it.
Factors & digit properties
- Divisors (48)
- 1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 26, 30, 33, 39, 44, 52, 55, 60, 65, 66, 78, 110, 130, 132, 143, 156, 165, 195, 220, 260, 286, 330, 390, 429, 572, 660, 715, 780, 858, 1430, 1716, 2145, 2860, 4290, 8580
- Prime factorisation
- 2^2 × 3 × 5 × 11 × 13
- Digit sum
- 21
- Digital root
- 3
Representations
- Decimal
- 8580
- Scientific notation
- 8.580 × 10^3
Roman numerals
Roman numerals as modelled here goes up to 3,999.
Binary
1 0 0 0 0 1 1 0 0 0 0 1 0 0
1 × 8,192 + 0 × 4,096 + 0 × 2,048 + 0 × 1,024 + 0 × 512 + 1 × 256 + 1 × 128 + 0 × 64 + 0 × 32 + 0 × 16 + 0 × 8 + 1 × 4 + 0 × 2 + 0 × 1 = 8,580
Octal
2 0 6 0 4
2 × 4,096 + 0 × 512 + 6 × 64 + 0 × 8 + 4 × 1 = 8,580
Hexadecimal
2 1 8 4
2 × 4,096 + 1 × 256 + 8 × 16 + 4 × 1 = 8,580
Read as powers of two: 8,192 + 256 + 128 + 4 = 8,580.
In historical numeral systems
Egyptian
8 lotuses, 5 coils of rope, 8 hobbles
8 × 1,000 + 5 × 100 + 8 × 10 = 8,580. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Systems that simply cannot reach this value are left out. Where a script needs a font most readers do not have, the reading is given instead of the glyphs — see number systems for each system in full.
Other mathematical patterns
- Abundant number
Related numbers & connections
The revised SID fixed the filter inconsistency, and much of the demoscene considered the character lost with it.
View 6581 →Other connections
- developed from6581
why?
Strength 0.50, confidence "high".
Media & popular culture
The 8580 replaced the 6581 with a corrected filter implementation and lower supply voltage. Music written for one revision frequently sounds noticeably different on the other.
DocumentedMedia & popular culturePeriod: 1986–
Common questions
Is 8580 a prime number?
No, 8580 is not prime.
What are the factors of 8580?
The factors of 8580 are 1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 26, 30, 33, 39, 44, 52, 55, 60, 65, 66, 78, 110, 130, 132, 143, 156, 165, 195, 220, 260, 286, 330, 390, 429, 572, 660, 715, 780, 858, 1430, 1716, 2145, 2860, 4290, 8580.
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: 15 July 2026