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11249 = 71607
BaseRepresentation
bin10101111110001
3120102122
42233301
5324444
6124025
744540
oct25761
916378
1011249
1184a7
126615
135174
144157
1534ee
hex2bf1

11249 has 4 divisors (see below), whose sum is σ = 12864. Its totient is φ = 9636.

The previous prime is 11243. The next prime is 11251. The reversal of 11249 is 94211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94211 = 137247.

It is a cyclic number.

It is not a de Polignac number, because 11249 - 28 = 10993 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10 and base 15.

It is not an unprimeable number, because it can be changed into a prime (11243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 797 + ... + 810.

It is an arithmetic number, because the mean of its divisors is an integer number (3216).

211249 is an apocalyptic number.

It is an amenable number.

11249 is a deficient number, since it is larger than the sum of its proper divisors (1615).

11249 is an equidigital number, since it uses as much as digits as its factorization.

11249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614.

The product of its digits is 72, while the sum is 17.

The square root of 11249 is about 106.0613030280. The cubic root of 11249 is about 22.4063598013.

It can be divided in two parts, 112 and 49, that added together give a palindrome (161).

The spelling of 11249 in words is "eleven thousand, two hundred forty-nine".

Divisors: 1 7 1607 11249