number.wiki
Number

2,789

2,789 is a prime, odd.

Deficient Number Prime Squarefree Twin Prime

Properties

Parity
Odd
Digit count
4
Digit sum
26
Digital root
8
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
2,790

Primality

2,789 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 2789
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 2,789)
1 × 2789
First multiples
2,789 · 5,578 · 8,367 · 11,156 · 13,945 · 16,734 · 19,523 · 22,312 · 25,101 · 27,890

Representations

In words
two thousand seven hundred eighty-nine
Ordinal
2789th
Roman numeral
MMDCCLXXXIX
Binary
101011100101
Octal
5345
Hexadecimal
AE5

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 2,777 (gap of 12)
  • Next prime: 2,791 (gap of 2)

Pair status: twin with 2791.

Hex color
#000AE5
RGB(0, 10, 229)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.10.229.