370
370 is a narcissistic number: 3³ + 7³ + 0³ = 27 + 343 + 0 = 370.
- Even
- Composite
Where 370 fits
Why 370 is special
370 is narcissistic — the sum of the cubes of its own digits returns the number itself — and it is the first of a genuinely unusual pair: 370 and 371 are consecutive integers that are both narcissistic, the only such neighbouring pair among three-digit numbers.
Factors & digit properties
- Divisors (8)
- 1, 2, 5, 10, 37, 74, 185, 370
- Prime factorisation
- 2 × 5 × 37
- Digit sum
- 10
- Digital root
- 1
Representations
- Decimal
- 370
- Scientific notation
- 3.700 × 10^2
Roman numerals
C C C L X X
Binary
1 0 1 1 1 0 0 1 0
1 × 256 + 0 × 128 + 1 × 64 + 1 × 32 + 1 × 16 + 0 × 8 + 0 × 4 + 1 × 2 + 0 × 1 = 370
Octal
5 6 2
5 × 64 + 6 × 8 + 2 × 1 = 370
Hexadecimal
1 7 2
1 × 256 + 7 × 16 + 2 × 1 = 370
Read as powers of two: 256 + 64 + 32 + 16 + 2 = 370.
In historical numeral systems
Egyptian
3 coils of rope, 7 hobbles
3 × 100 + 7 × 10 = 370. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
6 vertical wedges (sixties place), 1 corner wedge (units place)
6 × 60 + 10 = 370. Places are separated by a space on the tablet, with the higher place written first.
Greek (Ionic)
tau, then omicron, marked as a numeral
tau-omicron + keraia
tau + omicron written in descending order and added — the letters carry their values wherever they stand, so this is addition, not place value.
Hebrew numerals
shin, then ayin
shin-ayin
shin (300) + ayin (70) = 370, written in descending order.
Maya
3 bars + 3 dots (upper, twenties place) over 2 bars (lower, units place)
18 × 20 + 10 = 370. Places stack vertically with the smallest at the bottom, so the upper group is worth twenty times the lower.
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
- Narcissistic (Armstrong) number
- Harshad (Niven) number
Related numbers & connections
370 and 371 are consecutive integers that are both narcissistic — the only such neighbouring pair among three-digit numbers.
View 371 →Nearby in a sequence
- is adjacent to371
why?
Strength 0.50, confidence "high".
Mathematics
370 is a narcissistic (Armstrong) number: 3³ + 7³ + 0³ = 27 + 343 + 0 = 370. Together with 371 it forms the only pair of consecutive three-digit narcissistic numbers.
DocumentedMathematics
Common questions
Is 370 a prime number?
No, 370 is not prime.
What are the factors of 370?
The factors of 370 are 1, 2, 5, 10, 37, 74, 185, 370.
What is 370 in Roman numerals?
370 in Roman numerals is CCCLXX.
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