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Properties of the Number 505
 Because 505 is not divisible by 2 ...
 505 is an odd number
 505 has parity 1
 505 is not an even number
 Because 505 can be factored as 5 x 101 ...
 505 is a composite number
 505 is not a prime number
Alternative Representations of the Number 505
 Base 2 (binary): 111111001
 Base 8 (octal): 771
 Base 16 (hexadecimal): 1F9
Divisors of the Number 505
 505 has 4 positive divisors:
1, 5, 101, 505
 The sum of the positive divisors is 612
 505 has 3 proper divisors:
1, 5, 101
 The sum of the proper divisors is 107
 505 is a deficient number since the sum of the proper divisors is less than 505
 505 is not a perfect number
 505 is not an abundant number
More Properties of the Number 505
 505 is not a square number
 505 is not a cube number
 505 is a palindromic number (i.e., the digits are the same forwards and backwards)
 505 is not a Fibonacci number
 505 is not a Lucas number
