number.wiki
Number

20,023

20,023 is a prime, odd.

Deficient Number Prime Sexy Prime Squarefree Twin Prime

Properties

Parity
Odd
Digit count
5
Digit sum
7
Digital root
7
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
20,024

Primality

20,023 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 20023
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 20,023)
1 × 20023
First multiples
20,023 · 40,046 · 60,069 · 80,092 · 100,115 · 120,138 · 140,161 · 160,184 · 180,207 · 200,230

Representations

In words
twenty thousand twenty-three
Ordinal
20023rd
Binary
100111000110111
Octal
47067
Hexadecimal
4E37

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 20,021 (gap of 2)
  • Next prime: 20,029 (gap of 6)

Pair status: twin with 20021, sexy with 20029.

Unicode codepoint
U+4E37
Other letter (Lo)

UTF-8 encoding: E4 B8 B7 (3 bytes).

Hex color
#004E37
RGB(0, 78, 55)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.78.55.