395
395 is the year the Roman Empire divided permanently into east and west.
- Odd
- Composite
Where 395 fits
Why 395 is special
Theodosius left the empire to two sons and it was never reunited. The eastern half outlived the western by nearly a thousand years.
Factors & digit properties
- Divisors (4)
- 1, 5, 79, 395
- Prime factorisation
- 5 × 79
- Digit sum
- 17
- Digital root
- 8
Representations
- Decimal
- 395
- Binary
- 110001011
- Octal
- 613
- Hexadecimal
- 18b
- Roman numeral
- CCCXCV
- Scientific notation
- 3.950 × 10^2
Other mathematical patterns
- Deficient number
- Semiprime
Related numbers & connections
Constantinople was founded as an imperial capital in 330 and the empire divided permanently in 395. The eastern half, governed from that city, outlived the western by nearly a thousand years.
View 330 →Other connections
- developed from330
why?
Strength 0.50, confidence "high".
History
Rome had been administratively split before, but the 395 division held. The western half fell within eighty-one years and the eastern continued to 1453.
DocumentedHistoryGeography: Roman EmpirePeriod: 395
Common questions
Is 395 a prime number?
No, 395 is not prime.
What are the factors of 395?
The factors of 395 are 1, 5, 79, 395.
What is 395 in Roman numerals?
395 in Roman numerals is CCCXCV.
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