Numberwise

2867

2867 Šteins was visited by Rosetta on the way to a comet.

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Where 2867 fits

Where 2867 fits: Mathematics, Related numbersMathematics: Semiprime. Related numbers: 5535.MathematicsSemiprimeRelated numbers55352867
2867 connects to 2 worlds: mathematics, related numbers.

Why 2867 is special

Spacecraft flybys of asteroids are usually opportunistic like this: the target is chosen because it happens to lie near a trajectory already planned.

Factors & digit properties

Divisors (4)
1, 47, 61, 2867
Prime factorisation
47 × 61
Digit sum
23
Digital root
5

Representations

Decimal
2867
Scientific notation
2.867 × 10^3

Roman numerals

M M D C C C L X V I I

Binary

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

1 × 2,048 + 0 × 1,024 + 1 × 512 + 1 × 256 + 0 × 128 + 0 × 64 + 1 × 32 + 1 × 16 + 0 × 8 + 0 × 4 + 1 × 2 + 1 × 1 = 2,867

Octal

5 4 6 3

5 × 512 + 4 × 64 + 6 × 8 + 3 × 1 = 2,867

Hexadecimal

b 3 3

b × 256 + 3 × 16 + 3 × 1 = 2,867

Read as powers of two: 2,048 + 512 + 256 + 32 + 16 + 2 + 1 = 2,867.

In historical numeral systems

Egyptian

2 lotuses, 8 coils of rope, 6 hobbles, 7 strokes

2 × 1,000 + 8 × 100 + 6 × 10 + 7 × 1 = 2,867. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.

Babylonian

4 corner wedges + 7 vertical wedges (sixties place), 4 corner wedges + 7 vertical wedges (units place)

47 × 60 + 47 = 2867. 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

Related numbers & connections

Documented appearance
Both were asteroid flybys performed by spacecraft whose real destination was a comet.

Both were asteroid flybys performed by spacecraft whose real destination was a comet.

View 5535 →

Numbers Around Us

  • appears alongside5535
    why?

    Strength 0.50, confidence "high".

How is 2867 connected to another number? →

Science

  • The Rosetta spacecraft flew past 2867 Šteins in September 2008 en route to comet 67P, imaging a diamond-shaped body with a large impact crater.

    DocumentedSciencePeriod: 1969–

Common questions

Is 2867 a prime number?

No, 2867 is not prime.

What are the factors of 2867?

The factors of 2867 are 1, 47, 61, 2867.

What is 2867 in Roman numerals?

2867 in Roman numerals is MMDCCCLXVII.

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