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13225438 = 223712789
BaseRepresentation
bin110010011100…
…110111011110
3220212220220001
4302130313132
511341203223
61151244514
7220262062
oct62346736
926786801
1013225438
117513516
12451973a
132980a05
141a83aa2
1512639ad
hexc9cdde

13225438 has 8 divisors (see below), whose sum is σ = 19853640. Its totient is φ = 6607560.

The previous prime is 13225427. The next prime is 13225447. The reversal of 13225438 is 83452231.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3348 + ... + 6136.

It is an arithmetic number, because the mean of its divisors is an integer number (2481705).

Almost surely, 213225438 is an apocalyptic number.

13225438 is a deficient number, since it is larger than the sum of its proper divisors (6628202).

13225438 is a wasteful number, since it uses less digits than its factorization.

13225438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5162.

The product of its digits is 5760, while the sum is 28.

The square root of 13225438 is about 3636.6795294609. The cubic root of 13225438 is about 236.4848668852.

Adding to 13225438 its reverse (83452231), we get a palindrome (96677669).

The spelling of 13225438 in words is "thirteen million, two hundred twenty-five thousand, four hundred thirty-eight".

Divisors: 1 2 2371 2789 4742 5578 6612719 13225438