Number 221
It has 4 divisors and a digital root of 5. Explore its full properties below, or find words and phrases with a gematria value of 221.
221
Divisors: 4
1, 13, 17, 221
Sum: 252
Mathematical Properties
Golden Numbern/a
Reduced Digit Sum5
Magic Constant5,397,041
Digital Root5
Octal145(335)
Duodecimal313(165)
Hexadecimal545(dd)
Binary11011101
221st Values
Prime1,381
Triangular24,531
Square48,841
Star291,721
Pentagonal73,151
Cube10,793,861
Tetrahedral1,823,471
Square Pyramidal3,622,411
Fibonaccin/a
Harshad1,016
Happy Number1,533