1234
1234 is a year in the 13th century. The Mongols destroyed the Jin dynasty (China).
- Even
- Composite
Where 1234 fits
Why 1234 is special
1234 has a profile because of what happened in it rather than because of any property of the number: the Mongols destroyed the Jin dynasty (China).
1234 is part of
Factors & digit properties
- Divisors (4)
- 1, 2, 617, 1234
- Prime factorisation
- 2 × 617
- Digit sum
- 10
- Digital root
- 1
Representations
- Decimal
- 1234
- Scientific notation
- 1.234 × 10^3
Roman numerals
M C C X X X I V
MCCXXXIV uses the subtractive pair IV: one before five — five minus one.
Binary
1 0 0 1 1 0 1 0 0 1 0
1 × 1,024 + 0 × 512 + 0 × 256 + 1 × 128 + 1 × 64 + 0 × 32 + 1 × 16 + 0 × 8 + 0 × 4 + 1 × 2 + 0 × 1 = 1,234
Octal
2 3 2 2
2 × 512 + 3 × 64 + 2 × 8 + 2 × 1 = 1,234
Hexadecimal
4 d 2
4 × 256 + d × 16 + 2 × 1 = 1,234
Read as powers of two: 1,024 + 128 + 64 + 16 + 2 = 1,234.
In historical numeral systems
Egyptian
1 lotus, 2 coils of rope, 3 hobbles, 4 strokes
1 × 1,000 + 2 × 100 + 3 × 10 + 4 × 1 = 1,234. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
2 corner wedges (sixties place), 3 corner wedges + 4 vertical wedges (units place)
20 × 60 + 34 = 1234. Places are separated by a space on the tablet, with the higher place written first.
Systems that simply cannot reach this value are left out. Where a script needs a font most readers do not have, the reading is given instead of the glyphs — see number systems for each system in full.
Other mathematical patterns
- Deficient number
- Semiprime
Related numbers & connections
1234 is a year in the 13th century, in the 1230s.
Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
History
In 1234, the Mongols destroyed the Jin dynasty (China).
DocumentedHistoryGeography: ChinaPeriod: 1234
Common questions
Is 1234 a prime number?
No, 1234 is not prime.
What are the factors of 1234?
The factors of 1234 are 1, 2, 617, 1234.
What is 1234 in Roman numerals?
1234 in Roman numerals is MCCXXXIV. IV is subtractive: one before five — five minus one. Written additively it would be MCCXXXIIII, which Roman inscriptions used freely — the strict subtractive form is a later convention.
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