List of Numbers
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Properties of the Number 4
- Because 4 is divisible by 2 ...
- 4 is an even number
- 4 has parity 0
- 4 is not an odd number
- Because 4 can be factored as 2 x 2 ...
- 4 is a composite number
- 4 is not a prime number
Alternative Representations of the Number 4
- Base 2 (binary): 100
- Base 8 (octal): 4
- Base 16 (hexadecimal): 4
Divisors of the Number 4
- 4 has 3 positive divisors:
1, 2, 4
- The sum of the positive divisors is 7
- 4 has 2 proper divisors:
1, 2
- The sum of the proper divisors is 3
- 4 is a deficient number since the sum of the proper divisors is less than 4
- 4 is not a perfect number
- 4 is not an abundant number
More Properties of the Number 4
- 4 is a square number (i.e., square of the natural number 2)
- 4 is not a cube number
- 4 is a palindromic number (i.e., the digits are the same forwards and backwards)
- 4 is not a Fibonacci number
- 4 is a Lucas number
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