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13244303 = 33140013
BaseRepresentation
bin110010100001…
…011110001111
3220220212202202
4302201132033
511342304203
61151512115
7220401062
oct62413617
926825682
1013244303
117526706
12452863b
132989487
141a8a8d9
151269388
hexca178f

13244303 has 4 divisors (see below), whose sum is σ = 13284648. Its totient is φ = 13203960.

The previous prime is 13244293. The next prime is 13244321. The reversal of 13244303 is 30344231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30344231 = 59514309.

It is a cyclic number.

It is not a de Polignac number, because 13244303 - 214 = 13227919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13244323) 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, 19676 + ... + 20337.

It is an arithmetic number, because the mean of its divisors is an integer number (3321162).

Almost surely, 213244303 is an apocalyptic number.

13244303 is a deficient number, since it is larger than the sum of its proper divisors (40345).

13244303 is an equidigital number, since it uses as much as digits as its factorization.

13244303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40344.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 13244303 is about 3639.2723173734. The cubic root of 13244303 is about 236.5972555379.

Adding to 13244303 its reverse (30344231), we get a palindrome (43588534).

The spelling of 13244303 in words is "thirteen million, two hundred forty-four thousand, three hundred three".

Divisors: 1 331 40013 13244303