881
+881 is the international calling code for Global Mobile Satellite System.
- Odd
- Prime
Where 881 fits
Why 881 is special
+881 is a non-geographic range for satellite handsets, so a number does not correspond to any country.
881 is part of
Factors & digit properties
- Divisors (2)
- 1, 881
- Prime factorisation
- 881
- Digit sum
- 17
- Digital root
- 8
Representations
- Decimal
- 881
- Binary
- 1101110001
- Octal
- 1561
- Hexadecimal
- 371
- Roman numeral
- DCCCLXXXI
- Scientific notation
- 8.810 × 10^2
Other mathematical patterns
- Deficient number
- Happy number
- Twin prime
Related numbers & connections
Satellite handsets and international networks both sit outside the country-based numbering plan, marking the point at which identifying subscribers by territory stopped being sufficient.
View 882 →Geography
+881 reaches global satellite handsets. The number identifies a device rather than a place, which is unusual in a numbering plan built around territory.
DocumentedGeographyGeography: Global Mobile Satellite System
Common questions
Is 881 a prime number?
Yes, 881 is prime — it has exactly two positive divisors: 1 and itself.
What are the factors of 881?
The factors of 881 are 1, 881.
What is 881 in Roman numerals?
881 in Roman numerals is DCCCLXXXI.
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