Number 400
The number 400 is a perfect square (20²). It has 15 divisors and a digital root of 4. Explore its full properties below, or find words and phrases with a gematria value of 400.
400
Divisors: 15
1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400
Sum: 961
Prev Square: 361
20th Square Number
Next Square: 441
Mathematical Properties
Golden Numbern/a
Reduced Digit Sum4
Magic Constant32,000,200
Digital Root4
Octal256(620)
Duodecimal576(294)
Hexadecimal1,024(190)
Binary110010000
400th Values
Prime2,741
Triangular80,200
Square160,000
Star957,601
Pentagonal239,800
Cube64,000,000
Tetrahedral10,746,800
Square Pyramidal21,413,400
Fibonaccin/a
Harshad2,000
Happy Number2,745