616
616 is the ISO 3166-1 numeric country code for Poland.
- Even
- Composite
Where 616 fits
Why 616 is special
Poland's borders and name have both changed within the period the code register covers, and the numeric code has remained stable throughout.
616 is part of
Factors & digit properties
- Divisors (16)
- 1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 154, 308, 616
- Prime factorisation
- 2^3 × 7 × 11
- Digit sum
- 13
- Digital root
- 4
Representations
- Decimal
- 616
- Scientific notation
- 6.160 × 10^2
Roman numerals
D C X V I
Binary
1 0 0 1 1 0 1 0 0 0
1 × 512 + 0 × 256 + 0 × 128 + 1 × 64 + 1 × 32 + 0 × 16 + 1 × 8 + 0 × 4 + 0 × 2 + 0 × 1 = 616
Octal
1 1 5 0
1 × 512 + 1 × 64 + 5 × 8 + 0 × 1 = 616
Hexadecimal
2 6 8
2 × 256 + 6 × 16 + 8 × 1 = 616
Read as powers of two: 512 + 64 + 32 + 8 = 616.
In historical numeral systems
Egyptian
6 coils of rope, 1 hobble, 6 strokes
6 × 100 + 1 × 10 + 6 × 1 = 616. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
1 corner wedge (sixties place), 1 corner wedge + 6 vertical wedges (units place)
10 × 60 + 16 = 616. Places are separated by a space on the tablet, with the higher place written first.
Greek (Ionic)
chi, then iota, then stigma, marked as a numeral
chi-iota-stigma + keraia
chi + iota + stigma written in descending order and added — the letters carry their values wherever they stand, so this is addition, not place value.
Hebrew numerals
tav, then resh, then tet, then zayin
tav-resh-tet-zayin
The ordinary rule would give יו (yod 10 + vav 6), also a divine-name form, so 16 is written טז — tet (9) + zayin (7).
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
- Palindromic number
- Abundant number
Related numbers & connections
The oldest surviving fragment of Revelation gives 616, and both readings are attested in antiquity.
View 666 →Geography
616 is Poland's ISO numeric code. Its stability across border changes illustrates that the register identifies a state's continuity rather than its territory.
DocumentedGeographyGeography: Poland
Common questions
Is 616 a prime number?
No, 616 is not prime.
What are the factors of 616?
The factors of 616 are 1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 154, 308, 616.
What is 616 in Roman numerals?
616 in Roman numerals is DCXVI.
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