toFloat 
  Converts this Long value to Float.
The resulting value is the closest Float to this Long value. In case when this Long value is exactly between two Floats, the one with zero at least significant bit of mantissa is selected.
Since Kotlin
1.0Returns the value of this number as a Float, which may involve rounding.
Since Kotlin
1.1Converts this Long value to Float.
The resulting value is the closest Float to this Long value. In case when this Long value is exactly between two Floats, the one with zero at least significant bit of mantissa is selected.