Number
1,018
1,018 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 10
- Digital root
- 1
- Palindrome
- No
- Divisor count
- 4
- σ(n) — sum of divisors
- 1,530
Primality
Prime factorization: 2 × 509
Divisors & multiples
Aliquot sum (sum of proper divisors):
512
Representations
- In words
- one thousand eighteen
- Ordinal
- 1018th
- Roman numeral
- MXVIII
- Binary
- 1111111010
- Octal
- 1772
- Hexadecimal
- 3FA
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1018, here are decompositions:
- 5 + 1013 = 1018
- 41 + 977 = 1018
- 47 + 971 = 1018
- 71 + 947 = 1018
- 89 + 929 = 1018
- 107 + 911 = 1018
- 131 + 887 = 1018
- 137 + 881 = 1018
Showing the first eight; more decompositions exist.
Unicode codepoint
Ϻ
U+03FA
Uppercase letter (Lu)
UTF-8 encoding: CF BA (2 bytes).
Hex color
#0003FA
RGB(0, 3, 250)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.3.250.