9949

9949 is a natural number following 9948 and preceding 9950. It is a four-digit integer in base 10, composed of digits 9, 9, 4, and 9. Its value lies between 9000 and 10000, and it is odd.

In number theory, 9949 is prime, meaning it has no positive divisors other than 1 and itself. It is not divisible by 2, 3, or 5, and a check of prime divisors up to the square root (approximately 99.7) yields no factors.

In other representations, 9949 equals 10011011011101 in binary, 23335 in octal, and 26DD in hexadecimal. The sum of its digits is 31, giving a digital root of 4.

In everyday usage, the number is read as "nine thousand nine hundred forty-nine." It may appear in examples of primality tests, base conversions, or as a parameter in problem statements.