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13022305 = 52989809
BaseRepresentation
bin110001101011…
…010001100001
3220111121020121
4301223101201
511313203210
61143040241
7215454622
oct61532141
926447217
1013022305
11739493a
124440081
13290c40a
141a2da49
1512236da
hexc6b461

13022305 has 8 divisors (see below), whose sum is σ = 16165800. Its totient is φ = 10058496.

The previous prime is 13022293. The next prime is 13022311. The reversal of 13022305 is 50322031.

It can be written as a sum of positive squares in 4 ways, for example, as 4064256 + 8958049 = 2016^2 + 2993^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13022305 - 217 = 12891233 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 44760 + ... + 45049.

It is an arithmetic number, because the mean of its divisors is an integer number (2020725).

Almost surely, 213022305 is an apocalyptic number.

It is an amenable number.

13022305 is a deficient number, since it is larger than the sum of its proper divisors (3143495).

13022305 is an equidigital number, since it uses as much as digits as its factorization.

13022305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89843.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 13022305 is about 3608.6430967886. The cubic root of 13022305 is about 235.2678701910.

Adding to 13022305 its reverse (50322031), we get a palindrome (63344336).

The spelling of 13022305 in words is "thirteen million, twenty-two thousand, three hundred five".

Divisors: 1 5 29 145 89809 449045 2604461 13022305