Number 45
The number 45 is the 9th triangular number. It has 6 divisors and a digital root of 9. Explore its full properties below, or find words and phrases with a gematria value of 45.
45
Divisors: 6
1, 3, 5, 9, 15, 45
Sum: 78
Prev Triangular: 36
9th Triangular Number
Next Triangular: 55
Mathematical Properties
Golden Number1,836,311,903
Reduced Digit Sum9
Magic Constant45,585
Digital Root9
Octal37(55)
Duodecimal53(39)
Hexadecimal69(2d)
Binary101101
45th Values
Prime197
Triangular1,035
Square2,025
Star11,881
Pentagonal3,015
Cube91,125
Tetrahedral16,215
Square Pyramidal31,395
Fibonacci1,134,903,170
Harshad135
Happy Number329