number.wiki
Number

2,311

2,311 is a prime, odd.

Deficient Number Prime Squarefree Twin Prime

Properties

Parity
Odd
Digit count
4
Digit sum
7
Digital root
7
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
2,312

Primality

2,311 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 2311
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 2,311)
1 × 2311
First multiples
2,311 · 4,622 · 6,933 · 9,244 · 11,555 · 13,866 · 16,177 · 18,488 · 20,799 · 23,110

Representations

In words
two thousand three hundred eleven
Ordinal
2311th
Roman numeral
MMCCCXI
Binary
100100000111
Octal
4407
Hexadecimal
907

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 2,309 (gap of 2)
  • Next prime: 2,333 (gap of 22)

Pair status: twin with 2309.

Unicode codepoint
U+0907
Other letter (Lo)

UTF-8 encoding: E0 A4 87 (3 bytes).

Hex color
#000907
RGB(0, 9, 7)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.9.7.