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Properties of the Number 129
 Because 129 is not divisible by 2 ...
 129 is an odd number
 129 has parity 1
 129 is not an even number
 Because 129 can be factored as 3 x 43 ...
 129 is a composite number
 129 is not a prime number
Alternative Representations of the Number 129
 Base 2 (binary): 10000001
 Base 8 (octal): 201
 Base 16 (hexadecimal): 81
 Words: one hundred twentynine
Divisors of the Number 129
 129 has 4 positive divisors:
1, 3, 43, 129
 The sum of the positive divisors is 176
 129 has 3 proper divisors:
1, 3, 43
 The sum of the proper divisors is 47
 129 is a deficient number since the sum of the proper divisors is less than 129
 129 is not a perfect number
 129 is not an abundant number
More Properties of the Number 129
 129 is not a square number
 129 is not a cube number
 129 is not a palindromic number
 129 is not a Fibonacci number
 129 is not a Lucas number
