8450

8450 = 2 x 5 x 5 x 13 x 13.

8450 is 20402 in base 8.

8450 has five representations as a sum of two squares: 8450 = 13² + 91² = 23² + 89² = 35² + 85² = 47² + 79² = 65² + 65².

8450 is a divisor of 99⁴ - 1.

8450² can be written as a sum of two squares in 12 ways. In other words, 8450 is the hypotenuse of exactly 12 distinct integer-sided right triangles.

8450 is the maximum number of regions into which the plane can be divided using 33 concave quadrilaterals (A077591).

8450 is the number of basic blocks of size 5 x 14 for tilings with square tiles of size up to 5 x 5 (A054858).

Source: On-Line Encyclopedia of Integer Sequences