Number
164
164 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 3
- Digit sum
- 11
- Digital root
- 2
- Palindrome
- No
- Divisor count
- 6
- σ(n) — sum of divisors
- 294
Primality
Prime factorization: 2 2 × 41
Divisors & multiples
Aliquot sum (sum of proper divisors):
130
Representations
- In words
- one hundred sixty-four
- Ordinal
- 164th
- Roman numeral
- CLXIV
- Binary
- 10100100
- Octal
- 244
- Hexadecimal
- A4
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 164, here are decompositions:
- 7 + 157 = 164
- 13 + 151 = 164
- 37 + 127 = 164
- 61 + 103 = 164
- 67 + 97 = 164
Unicode codepoint
¤
U+00A4
Currency symbol (Sc)
UTF-8 encoding: C2 A4 (2 bytes).
Hex color
#0000A4
RGB(0, 0, 164)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.164.