1300
NGC 1300 is a textbook barred spiral galaxy.
- Even
- Composite
Where 1300 fits
Why 1300 is special
It is the example almost every textbook uses, because the bar and the arms are separated as cleanly as they ever get in a real galaxy.
Same number, different meanings
How 1300 is understood across different contexts — never implying one meaning because of another.
- Mathematics
It is the example almost every textbook uses, because the bar and the arms are separated as cleanly as they ever get in a real galaxy.
- History
In 1300, Boniface VIII proclaimed the first Jubilee year, drawing pilgrims to Rome in enormous numbers (Italy).
- Science
NGC 1300 is a barred spiral in Eridanus whose bar and spiral arms are unusually distinct, making it a standard illustration of barred morphology.
1300 is part of
Factors & digit properties
- Divisors (18)
- 1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300
- Prime factorisation
- 2^2 × 5^2 × 13
- Digit sum
- 4
- Digital root
- 4
Representations
- Decimal
- 1300
- Scientific notation
- 1.300 × 10^3
Roman numerals
M C C C
Binary
1 0 1 0 0 0 1 0 1 0 0
1 × 1,024 + 0 × 512 + 1 × 256 + 0 × 128 + 0 × 64 + 0 × 32 + 1 × 16 + 0 × 8 + 1 × 4 + 0 × 2 + 0 × 1 = 1,300
Octal
2 4 2 4
2 × 512 + 4 × 64 + 2 × 8 + 4 × 1 = 1,300
Hexadecimal
5 1 4
5 × 256 + 1 × 16 + 4 × 1 = 1,300
Read as powers of two: 1,024 + 256 + 16 + 4 = 1,300.
In historical numeral systems
Egyptian
1 lotus, 3 coils of rope
1 × 1,000 + 3 × 100 = 1,300. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
2 corner wedges + 1 vertical wedge (sixties place), 4 corner wedges (units place)
21 × 60 + 40 = 1300. 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
- Abundant number
- Happy number
- Harshad (Niven) number
Related numbers & connections
Both are barred spirals used as reference examples, one for clean morphology and one for a bar visibly feeding a nucleus.
View 1365 →NGC 2903 is brighter than several Messier objects and absent from that catalogue, which shows what the catalogue was for.
View 2903 →Numbers Around Us
- appears alongside1365
why?
Strength 0.50, confidence "high".
- appears inHistorical years
why?
Strength 0.50, confidence "high".
History
In 1300, Boniface VIII proclaimed the first Jubilee year, drawing pilgrims to Rome in enormous numbers (Italy).
DocumentedHistoryGeography: ItalyPeriod: 1300
Science
NGC 1300 is a barred spiral in Eridanus whose bar and spiral arms are unusually distinct, making it a standard illustration of barred morphology.
DocumentedSciencePeriod: 1835–
Common questions
Is 1300 a prime number?
No, 1300 is not prime.
What are the factors of 1300?
The factors of 1300 are 1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300.
What is 1300 in Roman numerals?
1300 in Roman numerals is MCCC.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 2 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 15 July 2026