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13066873 = 23356081
BaseRepresentation
bin110001110110…
…001001111001
3220120212101021
4301312021321
511321114443
61144022441
7216031561
oct61661171
926525337
1013066873
117415376
124461a21
1329267a1
141a41da1
1512319ed
hexc76279

13066873 has 4 divisors (see below), whose sum is σ = 13123188. Its totient is φ = 13010560.

The previous prime is 13066861. The next prime is 13066877. The reversal of 13066873 is 37866031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1857769 + 11209104 = 1363^2 + 3348^2 .

It is a cyclic number.

It is not a de Polignac number, because 13066873 - 217 = 12935801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13066877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27808 + ... + 28273.

It is an arithmetic number, because the mean of its divisors is an integer number (3280797).

Almost surely, 213066873 is an apocalyptic number.

It is an amenable number.

13066873 is a deficient number, since it is larger than the sum of its proper divisors (56315).

13066873 is an equidigital number, since it uses as much as digits as its factorization.

13066873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56314.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 13066873 is about 3614.8129965463. The cubic root of 13066873 is about 235.5359609589.

The spelling of 13066873 in words is "thirteen million, sixty-six thousand, eight hundred seventy-three".

Divisors: 1 233 56081 13066873