Number
396
396 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 3
- Digit sum
- 18
- Digital root
- 9
- Palindrome
- No
- Divisor count
- 18
- σ(n) — sum of divisors
- 1,092
Primality
Prime factorization: 2 2 × 3 2 × 11
Divisors & multiples
All divisors (18)
Aliquot sum (sum of proper divisors):
696
Representations
- In words
- three hundred ninety-six
- Ordinal
- 396th
- Roman numeral
- CCCXCVI
- Binary
- 110001100
- Octal
- 614
- Hexadecimal
- 18C
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 396, here are decompositions:
- 7 + 389 = 396
- 13 + 383 = 396
- 17 + 379 = 396
- 23 + 373 = 396
- 29 + 367 = 396
- 37 + 359 = 396
- 43 + 353 = 396
- 47 + 349 = 396
Showing the first eight; more decompositions exist.
Unicode codepoint
ƌ
U+018C
Lowercase letter (Ll)
UTF-8 encoding: C6 8C (2 bytes).
Hex color
#00018C
RGB(0, 1, 140)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.140.