6061
6061 is the general-purpose structural aluminium.
- Odd
- Composite
Where 6061 fits
Why 6061 is special
It is weldable, machinable and available everywhere, which makes it the default even where a stronger alloy would do the job with less material.
Factors & digit properties
- Divisors (8)
- 1, 11, 19, 29, 209, 319, 551, 6061
- Prime factorisation
- 11 × 19 × 29
- Digit sum
- 13
- Digital root
- 4
Representations
- Decimal
- 6061
- Scientific notation
- 6.061 × 10^3
Roman numerals
Roman numerals as modelled here goes up to 3,999.
Binary
1 0 1 1 1 1 0 1 0 1 1 0 1
1 × 4,096 + 0 × 2,048 + 1 × 1,024 + 1 × 512 + 1 × 256 + 1 × 128 + 0 × 64 + 1 × 32 + 0 × 16 + 1 × 8 + 1 × 4 + 0 × 2 + 1 × 1 = 6,061
Octal
1 3 6 5 5
1 × 4,096 + 3 × 512 + 6 × 64 + 5 × 8 + 5 × 1 = 6,061
Hexadecimal
1 7 a d
1 × 4,096 + 7 × 256 + a × 16 + d × 1 = 6,061
Read as powers of two: 4,096 + 1,024 + 512 + 256 + 128 + 32 + 8 + 4 + 1 = 6,061.
In historical numeral systems
Egyptian
6 lotuses, 6 hobbles, 1 stroke
6 × 1,000 + 6 × 10 + 1 × 1 = 6,061. 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
- Deficient number
- Lucky number (mathematical sieve)
Related numbers & connections
The same structural role under a different regional designation, close enough that substitution is routine and occasionally wrong.
View 6082 →Technology & computing
6061 is a heat-treatable aluminium alloy with magnesium and silicon, offering good strength, weldability and corrosion resistance in structural applications.
DocumentedTechnology & computingGeography: International — AISI, SAE and Aluminium Association designations
Common questions
Is 6061 a prime number?
No, 6061 is not prime.
What are the factors of 6061?
The factors of 6061 are 1, 11, 19, 29, 209, 319, 551, 6061.
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