674
+674 is the international calling code for Nauru.
- Even
- Composite
Where 674 fits
Why 674 is special
Nauru's phosphate deposits made it briefly among the richest countries per capita, and their exhaustion left about 80 percent of the island unusable.
Factors & digit properties
- Divisors (4)
- 1, 2, 337, 674
- Prime factorisation
- 2 × 337
- Digit sum
- 17
- Digital root
- 8
Representations
- Decimal
- 674
- Scientific notation
- 6.740 × 10^2
Roman numerals
D C L X X I V
DCLXXIV uses the subtractive pair IV: one before five — five minus one.
Binary
1 0 1 0 1 0 0 0 1 0
1 × 512 + 0 × 256 + 1 × 128 + 0 × 64 + 1 × 32 + 0 × 16 + 0 × 8 + 0 × 4 + 1 × 2 + 0 × 1 = 674
Octal
1 2 4 2
1 × 512 + 2 × 64 + 4 × 8 + 2 × 1 = 674
Hexadecimal
2 a 2
2 × 256 + a × 16 + 2 × 1 = 674
Read as powers of two: 512 + 128 + 32 + 2 = 674.
In historical numeral systems
Egyptian
6 coils of rope, 7 hobbles, 4 strokes
6 × 100 + 7 × 10 + 4 × 1 = 674. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
1 corner wedge + 1 vertical wedge (sixties place), 1 corner wedge + 4 vertical wedges (units place)
11 × 60 + 14 = 674. Places are separated by a space on the tablet, with the higher place written first.
Greek (Ionic)
chi, then omicron, then delta, marked as a numeral
chi-omicron-delta + keraia
chi + omicron + delta 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 ayin, then dalet
tav-resh-ayin-dalet
tav (400) + resh (200) + ayin (70) + dalet (4) = 674, written in descending order.
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
- Semiprime
Related numbers & connections
Nauru and Kiribati are Pacific island states whose economies were shaped by phosphate mining. Nauru's deposits made it briefly among the richest countries per capita and left most of the island unusable.
View 686 →Geography
+674 reaches Nauru, where phosphate mining produced extraordinary per-capita wealth and then stripped roughly four fifths of the island to bare rock. It is the standard cautionary case in resource economics.
DocumentedGeographyGeography: Nauru
Common questions
Is 674 a prime number?
No, 674 is not prime.
What are the factors of 674?
The factors of 674 are 1, 2, 337, 674.
What is 674 in Roman numerals?
674 in Roman numerals is DCLXXIV. IV is subtractive: one before five — five minus one. Written additively it would be DCLXXIIII, which Roman inscriptions used freely — the strict subtractive form is a later convention.
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