Number
2,000
2,000 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 2
- Digital root
- 2
- Palindrome
- No
- Divisor count
- 20
- σ(n) — sum of divisors
- 4,836
Primality
Prime factorization: 2 4 × 5 3
Divisors & multiples
All divisors (20)
Aliquot sum (sum of proper divisors):
2,836
Factor pairs (a × b = 2,000)
First multiples
Representations
- In words
- two thousand
- Ordinal
- 2000th
- Roman numeral
- MM
- Binary
- 11111010000
- Octal
- 3720
- Hexadecimal
- 7D0
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 2000, here are decompositions:
- 3 + 1997 = 2000
- 7 + 1993 = 2000
- 13 + 1987 = 2000
- 67 + 1933 = 2000
- 127 + 1873 = 2000
- 139 + 1861 = 2000
- 199 + 1801 = 2000
- 211 + 1789 = 2000
Showing the first eight; more decompositions exist.
Unicode codepoint
ߐ
U+07D0
Other letter (Lo)
UTF-8 encoding: DF 90 (2 bytes).
Hex color
#0007D0
RGB(0, 7, 208)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.7.208.