Number
1,940
1,940 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 14
- Digital root
- 5
- Palindrome
- No
- Divisor count
- 12
- σ(n) — sum of divisors
- 4,116
Primality
Prime factorization: 2 2 × 5 × 97
Divisors & multiples
Aliquot sum (sum of proper divisors):
2,176
First multiples
Representations
- In words
- one thousand nine hundred forty
- Ordinal
- 1940th
- Roman numeral
- MCMXL
- Binary
- 11110010100
- Octal
- 3624
- Hexadecimal
- 794
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1940, here are decompositions:
- 7 + 1933 = 1940
- 61 + 1879 = 1940
- 67 + 1873 = 1940
- 73 + 1867 = 1940
- 79 + 1861 = 1940
- 109 + 1831 = 1940
- 139 + 1801 = 1940
- 151 + 1789 = 1940
Showing the first eight; more decompositions exist.
Unicode codepoint
ޔ
U+0794
Other letter (Lo)
UTF-8 encoding: DE 94 (2 bytes).
Hex color
#000794
RGB(0, 7, 148)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.7.148.