3628
NGC 3628 has a tidal tail hundreds of thousands of light years long.
- Even
- Composite
Where 3628 fits
Why 3628 is special
The tail is material pulled out by its two neighbours, which is direct visible evidence of gravitational interaction between galaxies.
Factors & digit properties
- Divisors (6)
- 1, 2, 4, 907, 1814, 3628
- Prime factorisation
- 2^2 × 907
- Digit sum
- 19
- Digital root
- 1
Representations
- Decimal
- 3628
- Scientific notation
- 3.628 × 10^3
Roman numerals
M M M D C X X V I I I
Binary
1 1 1 0 0 0 1 0 1 1 0 0
1 × 2,048 + 1 × 1,024 + 1 × 512 + 0 × 256 + 0 × 128 + 0 × 64 + 1 × 32 + 0 × 16 + 1 × 8 + 1 × 4 + 0 × 2 + 0 × 1 = 3,628
Octal
7 0 5 4
7 × 512 + 0 × 64 + 5 × 8 + 4 × 1 = 3,628
Hexadecimal
e 2 c
e × 256 + 2 × 16 + c × 1 = 3,628
Read as powers of two: 2,048 + 1,024 + 512 + 32 + 8 + 4 = 3,628.
In historical numeral systems
Egyptian
3 lotuses, 6 coils of rope, 2 hobbles, 8 strokes
3 × 1,000 + 6 × 100 + 2 × 10 + 8 × 1 = 3,628. 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
- Deficient number
Related numbers & connections
Both are Leo-region spirals, one showing a tidal tail from interaction and one a flocculent disc.
View 3521 →Numbers Around Us
- appears alongside3521
why?
Strength 0.50, confidence "high".
Science
NGC 3628 forms the Leo Triplet with M65 and M66. Its extended tidal tail results from gravitational interaction with the other members.
DocumentedSciencePeriod: 1784–
Common questions
Is 3628 a prime number?
No, 3628 is not prime.
What are the factors of 3628?
The factors of 3628 are 1, 2, 4, 907, 1814, 3628.
What is 3628 in Roman numerals?
3628 in Roman numerals is MMMDCXXVIII.
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