1201
1201 is a year in the 13th century. The Fourth Crusade contracted with Venice for transport, a debt that redirected the expedition (Europe).
- Odd
- Prime
Where 1201 fits
Why 1201 is special
1201 has a profile because of what happened in it rather than because of any property of the number: the Fourth Crusade contracted with Venice for transport, a debt that redirected the expedition (Europe).
1201 is part of
Factors & digit properties
- Divisors (2)
- 1, 1201
- Prime factorisation
- 1201
- Digit sum
- 4
- Digital root
- 4
Representations
- Decimal
- 1201
- Scientific notation
- 1.201 × 10^3
Roman numerals
M C C I
Binary
1 0 0 1 0 1 1 0 0 0 1
1 × 1,024 + 0 × 512 + 0 × 256 + 1 × 128 + 0 × 64 + 1 × 32 + 1 × 16 + 0 × 8 + 0 × 4 + 0 × 2 + 1 × 1 = 1,201
Octal
2 2 6 1
2 × 512 + 2 × 64 + 6 × 8 + 1 × 1 = 1,201
Hexadecimal
4 b 1
4 × 256 + b × 16 + 1 × 1 = 1,201
Read as powers of two: 1,024 + 128 + 32 + 16 + 1 = 1,201.
In historical numeral systems
Egyptian
1 lotus, 2 coils of rope, 1 stroke
1 × 1,000 + 2 × 100 + 1 × 1 = 1,201. 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), 1 vertical wedge (units place)
20 × 60 + 1 = 1201. 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
- Lucky number (mathematical sieve)
Related numbers & connections
1201 is a year in the 13th century, in the 1200s.
Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
History
In 1201, the Fourth Crusade contracted with Venice for transport, a debt that redirected the expedition (Europe).
DocumentedHistoryGeography: EuropePeriod: 1201
Common questions
Is 1201 a prime number?
Yes, 1201 is prime — it has exactly two positive divisors: 1 and itself.
What are the factors of 1201?
The factors of 1201 are 1, 1201.
What is 1201 in Roman numerals?
1201 in Roman numerals is MCCI.
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