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Number

449

449 is a prime, odd, a calendar year.

Deficient Number Prime Sexy Prime Squarefree Year

Properties

Parity
Odd
Digit count
3
Digit sum
17
Digital root
8
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
450

Primality

449 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 449
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 449)
1 × 449
First multiples
449 · 898 · 1,347 · 1,796 · 2,245 · 2,694 · 3,143 · 3,592 · 4,041 · 4,490

Representations

In words
four hundred forty-nine
Ordinal
449th
Roman numeral
CDXLIX
Binary
111000001
Octal
701
Hexadecimal
1C1

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 443 (gap of 6)
  • Next prime: 457 (gap of 8)

Pair status: sexy with 443.

Unicode codepoint
ǁ
U+01C1
Other letter (Lo)

UTF-8 encoding: C7 81 (2 bytes).

Lookup U+01C1 on Compart ↗ Lookup on FileFormat.Info ↗
Hex color
#0001C1
RGB(0, 1, 193)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.193.