249
+249 is the international calling code for Sudan.
- Odd
- Composite
Where 249 fits
Why 249 is special
Sudan was Africa's largest country by area until South Sudan separated in 2011, the most recent successful secession to produce a UN member state.
Factors & digit properties
- Divisors (4)
- 1, 3, 83, 249
- Prime factorisation
- 3 × 83
- Digit sum
- 15
- Digital root
- 6
Representations
- Decimal
- 249
- Binary
- 11111001
- Octal
- 371
- Hexadecimal
- f9
- Roman numeral
- CCXLIX
- Scientific notation
- 2.490 × 10^2
Other mathematical patterns
- Deficient number
- Semiprime
Related numbers & connections
South Sudan seceded from Sudan in 2011 and was assigned +211 beside Sudan's +249. The two codes are a record of the most recent successful secession to produce a UN member state.
View 211 →Nearby in a sequence
- is adjacent to211
why?
Strength 0.50, confidence "high".
Geography
+249 reaches Sudan. It was the largest country in Africa until 2011, when South Sudan seceded and took a separate code, +211.
DocumentedGeographyGeography: Sudan
Common questions
Is 249 a prime number?
No, 249 is not prime.
What are the factors of 249?
The factors of 249 are 1, 3, 83, 249.
What is 249 in Roman numerals?
249 in Roman numerals is CCXLIX.
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