Numberwise

4769

4769 Castalia was the first asteroid imaged by radar.

1 confirmed record · 1 sourceChecked, general knowledgeHow we qualify claimsReport a correction

Where 4769 fits

Where 4769 fits: Mathematics, Related numbersMathematics: Semiprime. Related numbers: 486958, 2063.MathematicsSemiprimeRelated numbers48695820634769
4769 connects to 2 worlds: mathematics, related numbers.

Why 4769 is special

Radar showed it is two lobes in contact, which was the first direct evidence that contact binaries exist among asteroids.

Factors & digit properties

Divisors (4)
1, 19, 251, 4769
Prime factorisation
19 × 251
Digit sum
26
Digital root
8

Representations

Decimal
4769
Scientific notation
4.769 × 10^3

Roman numerals

Roman numerals as modelled here goes up to 3,999.

Binary

1 0 0 1 0 1 0 1 0 0 0 0 1

1 × 4,096 + 0 × 2,048 + 0 × 1,024 + 1 × 512 + 0 × 256 + 1 × 128 + 0 × 64 + 1 × 32 + 0 × 16 + 0 × 8 + 0 × 4 + 0 × 2 + 1 × 1 = 4,769

Octal

1 1 2 4 1

1 × 4,096 + 1 × 512 + 2 × 64 + 4 × 8 + 1 × 1 = 4,769

Hexadecimal

1 2 a 1

1 × 4,096 + 2 × 256 + a × 16 + 1 × 1 = 4,769

Read as powers of two: 4,096 + 512 + 128 + 32 + 1 = 4,769.

In historical numeral systems

Egyptian

4 lotuses, 7 coils of rope, 6 hobbles, 9 strokes

4 × 1,000 + 7 × 100 + 6 × 10 + 9 × 1 = 4,769. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.

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

Related numbers & connections

Connection
Both are contact binaries, one imaged by radar from Earth and one photographed from a few thousand kilometres.

Both are contact binaries, one imaged by radar from Earth and one photographed from a few thousand kilometres.

View 486958 →

Other connections

  • is associated with486958
    why?

    Strength 0.50, confidence "high".

  • is associated with2063
    why?

    Strength 0.50, confidence "high".

How is 4769 connected to another number? →

Science

  • Radar observations of 4769 Castalia in 1989 resolved a bilobed shape, providing the first direct imaging of a contact binary asteroid.

    DocumentedSciencePeriod: 1989–

Common questions

Is 4769 a prime number?

No, 4769 is not prime.

What are the factors of 4769?

The factors of 4769 are 1, 19, 251, 4769.

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