6699
Port 6699 was Napster's default.
- Odd
- Composite
Where 6699 fits
Why 6699 is special
Napster ran from 1999 to 2001 and had a central index, which is precisely what made it possible to shut down. Every successor was designed to remove that single point of failure.
Factors & digit properties
- Divisors (16)
- 1, 3, 7, 11, 21, 29, 33, 77, 87, 203, 231, 319, 609, 957, 2233, 6699
- Prime factorisation
- 3 × 7 × 11 × 29
- Digit sum
- 30
- Digital root
- 3
Representations
- Decimal
- 6699
- Binary
- 1101000101011
- Octal
- 15053
- Hexadecimal
- 1a2b
- Scientific notation
- 6.699 × 10^3
Other mathematical patterns
- Deficient number
Related numbers & connections
BitTorrent and Napster represent opposite answers to distribution. Napster's central index made it stoppable; BitTorrent removed the component that made that possible.
View 6881 →Technology & computing
Napster's directory was centralised even though transfers were peer to peer, so a court order could stop it. Gnutella, Fasttrack and BitTorrent were each designed to remove the component that made that possible.
DocumentedTechnology & computingPeriod: 1999–2001
Common questions
Is 6699 a prime number?
No, 6699 is not prime.
What are the factors of 6699?
The factors of 6699 are 1, 3, 7, 11, 21, 29, 33, 77, 87, 203, 231, 319, 609, 957, 2233, 6699.
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