number.wiki
Number

42,221

42,221 is a prime, odd.

Deficient Number Prime Sexy Prime Squarefree Twin Prime

Properties

Parity
Odd
Digit count
5
Digit sum
11
Digital root
2
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
42,222

Primality

42,221 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 42221
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 42,221)
1 × 42221
First multiples
42,221 · 84,442 · 126,663 · 168,884 · 211,105 · 253,326 · 295,547 · 337,768 · 379,989 · 422,210

Representations

In words
forty-two thousand two hundred twenty-one
Ordinal
42221st
Binary
1010010011101101
Octal
122355
Hexadecimal
A4ED

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 42,209 (gap of 12)
  • Next prime: 42,223 (gap of 2)

Pair status: twin with 42223.

Unicode codepoint
U+A4ED
Other letter (Lo)

UTF-8 encoding: EA 93 AD (3 bytes).

Hex color
#00A4ED
RGB(0, 164, 237)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.237.