11912

11912 is a natural number that sits between 11911 and 11913. It is an even composite number with prime factorization 2^3 × 1489, where 1489 is a prime number. Consequently, its divisors are 1, 2, 4, 8, 1489, 2978, 5956, and 11912, for a total of eight divisors. The sum of its proper divisors is 10438, which is less than 11912, so 11912 is a deficient number. Its Euler totient is φ(11912) = 5952.

In base representations, 11912 can be expressed as binary 10111010001000, octal 27210, and hexadecimal 2E88. Therefore, in hexadecimal notation it is 0x2E88.

Additional properties include that 11912 is divisible by 8, reflecting its factorization as 2^3 times a prime. It is not divisible by 3, since the sum of its digits is 14, nor by 5, and it has no other small prime factors beyond 2 and 1489.

As a relatively small even composite with a simple factorization, 11912 serves as an example in discussions of divisor structure, prime factorization, and base conversion in number theory. Beyond its arithmetic properties, there is no widely recognized historical or cultural significance attributed to 11912 in standard reference sources.