number.wiki
Number

1,213

1,213 is a prime, odd, a calendar year.

Cousin Prime Deficient Number Prime Squarefree Year

Properties

Parity
Odd
Digit count
4
Digit sum
7
Digital root
7
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
1,214

Primality

1,213 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 1213
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 1,213)
1 × 1213
First multiples
1,213 · 2,426 · 3,639 · 4,852 · 6,065 · 7,278 · 8,491 · 9,704 · 10,917 · 12,130

Representations

In words
one thousand two hundred thirteen
Ordinal
1213th
Roman numeral
MCCXIII
Binary
10010111101
Octal
2275
Hexadecimal
4BD

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 1,201 (gap of 12)
  • Next prime: 1,217 (gap of 4)

Pair status: cousin with 1217.

Unicode codepoint
ҽ
U+04BD
Lowercase letter (Ll)

UTF-8 encoding: D2 BD (2 bytes).

Hex color
#0004BD
RGB(0, 4, 189)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.4.189.