number.wiki
Number

1,667

1,667 is a prime, odd, a calendar year.

Cousin Prime Deficient Number Prime Squarefree Twin Prime Year

Properties

Parity
Odd
Digit count
4
Digit sum
20
Digital root
2
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
1,668

Primality

1,667 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 1667
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 1,667)
1 × 1667
First multiples
1,667 · 3,334 · 5,001 · 6,668 · 8,335 · 10,002 · 11,669 · 13,336 · 15,003 · 16,670

Representations

In words
one thousand six hundred sixty-seven
Ordinal
1667th
Roman numeral
MDCLXVII
Binary
11010000011
Octal
3203
Hexadecimal
683

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 1,663 (gap of 4)
  • Next prime: 1,669 (gap of 2)

Pair status: twin with 1669, cousin with 1663.

Unicode codepoint
ڃ
U+0683
Other letter (Lo)

UTF-8 encoding: DA 83 (2 bytes).

Hex color
#000683
RGB(0, 6, 131)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.6.131.