Numberwise

1236

CWE-1236 is formula injection in a spreadsheet file.

2 confirmed records · 2 sourcesChecked and sourcedChecked, general knowledgeHow we qualify claimsReport a correction

Where 1236 fits

Where 1236 fits: Mathematics, History, Related numbersMathematics: Harshad (Niven) number. History: Historical years. Related numbers: 4180.MathematicsHarshad (Niven) numberHistoryHistorical yearsRelated numbers41801236
1236 connects to 3 worlds: mathematics, history, related numbers.

Why 1236 is special

Exported data beginning with an equals sign is executed as a formula when the file is opened, which turns a report into a delivery mechanism.

Same number, different meanings

How 1236 is understood across different contexts — never implying one meaning because of another.

1236 is part of

Numbers around us

Factors & digit properties

Divisors (12)
1, 2, 3, 4, 6, 12, 103, 206, 309, 412, 618, 1236
Prime factorisation
2^2 × 3 × 103
Digit sum
12
Digital root
3

Representations

Decimal
1236
Scientific notation
1.236 × 10^3

Roman numerals

M C C X X X V I

Binary

1 0 0 1 1 0 1 0 1 0 0

1 × 1,024 + 0 × 512 + 0 × 256 + 1 × 128 + 1 × 64 + 0 × 32 + 1 × 16 + 0 × 8 + 1 × 4 + 0 × 2 + 0 × 1 = 1,236

Octal

2 3 2 4

2 × 512 + 3 × 64 + 2 × 8 + 4 × 1 = 1,236

Hexadecimal

4 d 4

4 × 256 + d × 16 + 4 × 1 = 1,236

Read as powers of two: 1,024 + 128 + 64 + 16 + 4 = 1,236.

In historical numeral systems

Egyptian

1 lotus, 2 coils of rope, 3 hobbles, 6 strokes

1 × 1,000 + 2 × 100 + 3 × 10 + 6 × 1 = 1,236. 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 + 6 vertical wedges (units place)

20 × 60 + 36 = 1236. 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
  • Harshad (Niven) number

Related numbers & connections

Documented appearance
1236 is a year in the 13th century, in the 1230s.

1236 is a year in the 13th century, in the 1230s.

Connection
CSV has no way to mark a field as data rather than formula, which is what makes spreadsheet injection possible.

CSV has no way to mark a field as data rather than formula, which is what makes spreadsheet injection possible.

View 4180 →

Numbers Around Us

  • appears inHistorical years
    why?

    Strength 0.50, confidence "high".

Other connections

  • is associated with4180
    why?

    Strength 0.50, confidence "high".

How is 1236 connected to another number? →

History

  • In 1236, Ferdinand III captured Cordoba, and its great mosque became a cathedral (Iberia).

    DocumentedHistoryGeography: IberiaPeriod: 1236

Technology & computing

  • CWE-1236 covers improper neutralisation of formula elements in CSV output. Spreadsheet applications interpret leading formula characters, so exported user data can execute on open.

    DocumentedTechnology & computingGeography: International — MITRE CWEPeriod: 2006–

Common questions

Is 1236 a prime number?

No, 1236 is not prime.

What are the factors of 1236?

The factors of 1236 are 1, 2, 3, 4, 6, 12, 103, 206, 309, 412, 618, 1236.

What is 1236 in Roman numerals?

1236 in Roman numerals is MCCXXXVI.

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