The number 4

Representation numerals

Greek numeral

δʹ

Arabic numeral

٤

Roman numeral

IV

Maya numeral

●●●●

Chinese numeral

Hebrew numeral

ד
Numeral systems
Binary: 100
Septimal (base 7): 4
Octal: 4
Hexadecimal: 4
Base 24: 4
Factorization
4 = 2 × 2
4 has 3 divisors: 1, 2, 4
Sum of all divisors other than 4: 3
4 = 2 2
4 = 1 + 3
Sums & differences
Goldbach conjecture: 4 = 2 + 2
Characteristics
4 is a palindromic number in decimal system
4 is a palindromic number in septimal system (4)
Related primes
The 4th prime number is: 7
Previous prime number: 3 — Next prime number: 5
Home | About | Contact | Pythagorean Triples | Wallpapers