Representation numerals

εʹ

٥

V

▃▃▃▃▃

五

ה

Numeral systems

Binary: 101

Septimal (base 7): 5

Octal: 5

Hexadecimal: 5

Base 24: 5

Factorization

5 is a prime number

Sums & differences

5 is the sum of the first 2 prime numbers: 5 = 2 + 3

Difference of 2 squares: 5 = 3^{2} - 2^{2}

Characteristics

5 is a Fibonacci number

5 is a pentagonal number

5 is a palindromic number in decimal system

5 is a palindromic number in binary system (101)

5 is a palindromic number in septimal system (5)