Number 21305012
IS: 7
Representations of 21305012
२१३०५०१२
٢١٣٠٥٠١٢
三十零五千零一十二
שה׳ יב
Number-theory characteristics (5)
Difference of 2 squares
Odious number
Even
Composite
Deficient
Base-10 digit properties (2)
These depend on the decimal representation of the number.
Duck number
Happy number