Number 7

The number 7 is the 4th prime number. It has 2 divisors and a digital root of 7. Explore its full properties below, or find words and phrases with a gematria value of 7.

7
Divisors: 2
1, 7
Sum: 8
Prev Prime: 5
4th Prime Number
Next Prime: 11
Prev Palindromic: 6
8th Palindromic Number
Next Palindromic: 8

Mathematical Properties

Golden Number21
Reduced Digit Sum7
Magic Constant175
Digital Root7
Octal7(7)
Duodecimal7(7)
Hexadecimal7(7)
Binary111

7th Values

Prime17
Triangular28
Square49
Star253
Pentagonal70
Cube343
Tetrahedral84
Square Pyramidal140
Fibonacci13
Harshad7
Happy Number31