Number
505
505 is a composite number, odd, a calendar year.
Properties
- Parity
- Odd
- Digit count
- 3
- Digit sum
- 10
- Digital root
- 1
- Palindrome
- Yes
- Divisor count
- 4
- σ(n) — sum of divisors
- 612
Primality
Prime factorization: 5 × 101
Divisors & multiples
Aliquot sum (sum of proper divisors):
107
Representations
- In words
- five hundred five
- Ordinal
- 505th
- Roman numeral
- DV
- Binary
- 111111001
- Octal
- 771
- Hexadecimal
- 1F9
Also seen as
Unicode codepoint
ǹ
U+01F9
Lowercase letter (Ll)
UTF-8 encoding: C7 B9 (2 bytes).
Hex color
#0001F9
RGB(0, 1, 249)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.249.
Possible US bank routing number
This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.
Routing number
000000505
Federal Reserve
United States Government
Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.