606
The Roland TR-606 was sold as a companion to the TB-303.
- Even
- Composite
Where 606 fits
Why 606 is special
The pair failed commercially together and were adopted together, which is why their combination is a recognisable sound rather than two separate ones.
Factors & digit properties
- Divisors (8)
- 1, 2, 3, 6, 101, 202, 303, 606
- Prime factorisation
- 2 × 3 × 101
- Digit sum
- 12
- Digital root
- 3
Representations
- Decimal
- 606
- Scientific notation
- 6.060 × 10^2
Roman numerals
D C V I
Binary
1 0 0 1 0 1 1 1 1 0
1 × 512 + 0 × 256 + 0 × 128 + 1 × 64 + 0 × 32 + 1 × 16 + 1 × 8 + 1 × 4 + 1 × 2 + 0 × 1 = 606
Octal
1 1 3 6
1 × 512 + 1 × 64 + 3 × 8 + 6 × 1 = 606
Hexadecimal
2 5 e
2 × 256 + 5 × 16 + e × 1 = 606
Read as powers of two: 512 + 64 + 16 + 8 + 4 + 2 = 606.
In historical numeral systems
Egyptian
6 coils of rope, 6 strokes
6 × 100 + 6 × 1 = 606. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
1 corner wedge (sixties place), 6 vertical wedges (units place)
10 × 60 + 6 = 606. Places are separated by a space on the tablet, with the higher place written first.
Greek (Ionic)
chi, then stigma, marked as a numeral
chi-stigma + keraia
chi + stigma written in descending order and added — the letters carry their values wherever they stand, so this is addition, not place value.
Hebrew numerals
tav, then resh, then vav
tav-resh-vav
tav (400) + resh (200) + vav (6) = 606, written in descending order.
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
- Palindromic number
- Abundant number
Related numbers & connections
The drum machine and the bassline synthesiser were sold as a pair, failed as a pair and were adopted as a pair.
View 303 →Numbers Around Us
- appears alongside303
why?
Strength 0.50, confidence "high".
- appears inMusical time signatures
why?
Strength 0.50, confidence "high".
Media & popular culture
The Roland TR-606 Drumatix was released in 1981 alongside the TB-303 as accompaniment for solo guitarists. Both were later adopted in electronic music well outside their intended use.
DocumentedMedia & popular cultureGeography: JapanPeriod: 1981–1984
Common questions
Is 606 a prime number?
No, 606 is not prime.
What are the factors of 606?
The factors of 606 are 1, 2, 3, 6, 101, 202, 303, 606.
What is 606 in Roman numerals?
606 in Roman numerals is DCVI.
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