9801

9801 is a natural number that follows 9800 and precedes 9802. It is notable for being a perfect square, since 9801 equals 99^2. The square root of 9801 is 99, and 99 factors as 3^2 × 11, giving the prime factorization 3^4 × 11^2.

An interesting property is that the digits of 9801 are the reverse of 1089, which is 33^2. Consequently, 9801 and 1089 form a reversed pair of squares (99^2 and 33^2, both multiples of 11) in decimal notation, a fact often cited in number tricks and digit-reversal observations.

In hexadecimal notation, 9801 is represented as 0x2649. As a four-digit square, it serves as a simple example in discussions of square numbers and factorization within the range of two-digit bases.