Number
1,098
1,098 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 18
- Digital root
- 9
- Palindrome
- No
- Divisor count
- 12
- σ(n) — sum of divisors
- 2,418
Primality
Prime factorization: 2 × 3 2 × 61
Divisors & multiples
Aliquot sum (sum of proper divisors):
1,320
First multiples
Representations
- In words
- one thousand ninety-eight
- Ordinal
- 1098th
- Roman numeral
- MXCVIII
- Binary
- 10001001010
- Octal
- 2112
- Hexadecimal
- 44A
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1098, here are decompositions:
- 5 + 1093 = 1098
- 7 + 1091 = 1098
- 11 + 1087 = 1098
- 29 + 1069 = 1098
- 37 + 1061 = 1098
- 47 + 1051 = 1098
- 59 + 1039 = 1098
- 67 + 1031 = 1098
Showing the first eight; more decompositions exist.
Unicode codepoint
ъ
U+044A
Lowercase letter (Ll)
UTF-8 encoding: D1 8A (2 bytes).
Hex color
#00044A
RGB(0, 4, 74)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.4.74.