number.wiki
Number

19,009

19,009 is a prime, odd.

Cousin Prime Deficient Number Prime Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
19
Digital root
1
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
19,010

Primality

19,009 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 19009
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 19,009)
1 × 19009
First multiples
19,009 · 38,018 · 57,027 · 76,036 · 95,045 · 114,054 · 133,063 · 152,072 · 171,081 · 190,090

Representations

In words
nineteen thousand nine
Ordinal
19009th
Binary
100101001000001
Octal
45101
Hexadecimal
4A41

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 19,001 (gap of 8)
  • Next prime: 19,013 (gap of 4)

Pair status: cousin with 19013.

Unicode codepoint
U+4A41
Other letter (Lo)

UTF-8 encoding: E4 A9 81 (3 bytes).

Hex color
#004A41
RGB(0, 74, 65)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.74.65.