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110309 = 472347

110309 has 4 divisors (see below), whose sum is σ = 112704. Its totient is φ = 107916.

The previous prime is 110291. The next prime is 110311. The reversal of 110309 is 903011.

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: 903011 = 4719213.

It is a cyclic number.

It is not a de Polignac number, because 110309 - 212 = 106213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110293 and 110302.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 110309.

It is not an unprimeable number, because it can be changed into a prime (110339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1127 + ... + 1220.

It is an arithmetic number, because the mean of its divisors is an integer number (28176).

2110309 is an apocalyptic number.

It is an amenable number.

110309 is a deficient number, since it is larger than the sum of its proper divisors (2395).

110309 is an equidigital number, since it uses as much as digits as its factorization.

110309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 110309 is about 332.1279873784. The cubic root of 110309 is about 47.9590217392.

The spelling of 110309 in words is "one hundred ten thousand, three hundred nine".

Divisors: 1 47 2347 110309