Number
1,422
1,422 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 9
- Digital root
- 9
- Palindrome
- No
- Divisor count
- 12
- σ(n) — sum of divisors
- 3,120
Primality
Prime factorization: 2 × 3 2 × 79
Divisors & multiples
Aliquot sum (sum of proper divisors):
1,698
First multiples
Representations
- In words
- one thousand four hundred twenty-two
- Ordinal
- 1422nd
- Roman numeral
- MCDXXII
- Binary
- 10110001110
- Octal
- 2616
- Hexadecimal
- 58E
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1422, here are decompositions:
- 13 + 1409 = 1422
- 23 + 1399 = 1422
- 41 + 1381 = 1422
- 61 + 1361 = 1422
- 101 + 1321 = 1422
- 103 + 1319 = 1422
- 131 + 1291 = 1422
- 139 + 1283 = 1422
Showing the first eight; more decompositions exist.
Unicode codepoint
֎
U+058E
Other symbol (So)
UTF-8 encoding: D6 8E (2 bytes).
Hex color
#00058E
RGB(0, 5, 142)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.142.