672
+672 is the international calling code for Norfolk Island and Australian Antarctic Territory.
- Even
- Composite
Where 672 fits
Why 672 is special
One code covers a small Pacific island and Australia's Antarctic bases, which have almost nothing in common except administration.
Factors & digit properties
- Divisors (24)
- 1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672
- Prime factorisation
- 2^5 × 3 × 7
- Digit sum
- 15
- Digital root
- 6
Representations
- Decimal
- 672
- Binary
- 1010100000
- Octal
- 1240
- Hexadecimal
- 2a0
- Roman numeral
- DCLXXII
- Scientific notation
- 6.720 × 10^2
Other mathematical patterns
- Abundant number
Related numbers & connections
Norfolk Island and Australia's Antarctic territory share +672 and are both Australian administrations, which is a bureaucratic pairing rather than a geographic one.
View 61 →Other connections
- is associated with61
why?
Strength 0.50, confidence "high".
Geography
+672 covers Norfolk Island and Australia's Antarctic territory — an administrative pairing rather than a geographic one.
DocumentedGeographyGeography: Norfolk Island and Australian Antarctic Territory
Common questions
Is 672 a prime number?
No, 672 is not prime.
What are the factors of 672?
The factors of 672 are 1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672.
What is 672 in Roman numerals?
672 in Roman numerals is DCLXXII.
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