Number
2,042
2,042 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 8
- Digital root
- 8
- Palindrome
- No
- Divisor count
- 4
- σ(n) — sum of divisors
- 3,066
Primality
Prime factorization: 2 × 1021
Divisors & multiples
Aliquot sum (sum of proper divisors):
1,024
First multiples
Representations
- In words
- two thousand forty-two
- Ordinal
- 2042nd
- Roman numeral
- MMXLII
- Binary
- 11111111010
- Octal
- 3772
- Hexadecimal
- 7FA
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 2042, here are decompositions:
- 3 + 2039 = 2042
- 13 + 2029 = 2042
- 31 + 2011 = 2042
- 43 + 1999 = 2042
- 109 + 1933 = 2042
- 163 + 1879 = 2042
- 181 + 1861 = 2042
- 211 + 1831 = 2042
Showing the first eight; more decompositions exist.
Unicode codepoint
ߺ
U+07FA
Modifier letter (Lm)
UTF-8 encoding: DF BA (2 bytes).
Hex color
#0007FA
RGB(0, 7, 250)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.7.250.