4,294,967,295
4,294,967,295 is 2³² − 1: the largest value an unsigned 32-bit integer can hold.
- Odd
- Composite
Why 4,294,967,295 is special
Written in hexadecimal it is FFFFFFFF, eight F's, which is why it shows up as a sentinel for 'not set' in so many binary formats. It is also 255.255.255.255, the IPv4 broadcast address, because an IPv4 address is a 32-bit integer wearing dots.
Factors & digit properties
- Divisors (32)
- 1, 3, 5, 15, 17, 51, 85, 255, 257, 771, 1285, 3855, 4369, 13107, 21845, 65535, 65537, 196611, 327685, 983055, 1114129, 3342387, 5570645, 16711935, 16843009, 50529027, 84215045, 252645135, 286331153, 858993459, 1431655765, 4294967295
- Prime factorisation
- 3 × 5 × 17 × 257 × 65537
- Digit sum
- 57
- Digital root
- 3
Representations
- Decimal
- 4294967295
- Scientific notation
- 4.295 × 10^9
Roman numerals
Roman numerals as modelled here goes up to 3,999.
Binary
Binary (base 2) as modelled here goes up to 1,000,000,000.
Octal
Octal (base 8) as modelled here goes up to 1,000,000,000.
Hexadecimal
Hexadecimal (base 16) as modelled here goes up to 1,000,000,000.
Other mathematical patterns
- Deficient number
Technology & computing
The largest value an unsigned 32-bit integer can hold is 4,294,967,295 (worldwide, two's complement). Written in hexadecimal it is eight F's, which is why it appears so often as a sentinel for 'not set'. It is also 255.255.255.255, the IPv4 broadcast address.
DocumentedTechnology & computingGeography: worldwide, two's complement
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