5,432
5,432 is the default port for PostgreSQL databases.
- Even
- Composite
Where 5,432 fits
Why 5,432 is special
5432 counts down — 5, 4, 3, 2 — which is a small piece of deliberate memorability in a numbering space with little of it. It has been PostgreSQL's registered default since the project's early years, and like MySQL's 3306 it is heavily scanned precisely because so few installations move it.
Factors & digit properties
- Divisors (16)
- 1, 2, 4, 7, 8, 14, 28, 56, 97, 194, 388, 679, 776, 1358, 2716, 5432
- Prime factorisation
- 2^3 × 7 × 97
- Digit sum
- 14
- Digital root
- 5
Representations
- Decimal
- 5432
- Binary
- 1010100111000
- Octal
- 12470
- Hexadecimal
- 1538
- Scientific notation
- 5.432 × 10^3
Other mathematical patterns
- Abundant number
- Harshad (Niven) number
Related numbers & connections
Microsoft SQL Server and PostgreSQL defaults. With MySQL's 3306 they are the three database ports automated scanners check first, because almost nobody changes them.
View 1433 →Technology & computing
5432 is PostgreSQL's default port, as 3306 is MySQL's. The predictability is the point — a client can connect without configuration — and also the risk, since an exposed database port is found by automated scanning within hours rather than days.
DocumentedTechnology & computing
Common questions
Is 5,432 a prime number?
No, 5,432 is not prime.
What are the factors of 5,432?
The factors of 5,432 are 1, 2, 4, 7, 8, 14, 28, 56, 97, 194, 388, 679, 776, 1358, 2716, 5432.
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