Number
1,042
1,042 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 7
- Digital root
- 7
- Palindrome
- No
- Divisor count
- 4
- σ(n) — sum of divisors
- 1,566
Primality
Prime factorization: 2 × 521
Divisors & multiples
Aliquot sum (sum of proper divisors):
524
Representations
- In words
- one thousand forty-two
- Ordinal
- 1042nd
- Roman numeral
- MXLII
- Binary
- 10000010010
- Octal
- 2022
- Hexadecimal
- 412
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1042, here are decompositions:
- 3 + 1039 = 1042
- 11 + 1031 = 1042
- 23 + 1019 = 1042
- 29 + 1013 = 1042
- 59 + 983 = 1042
- 71 + 971 = 1042
- 89 + 953 = 1042
- 101 + 941 = 1042
Showing the first eight; more decompositions exist.
Unicode codepoint
В
U+0412
Uppercase letter (Lu)
UTF-8 encoding: D0 92 (2 bytes).
Hex color
#000412
RGB(0, 4, 18)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.4.18.