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13003241 = 22757283
BaseRepresentation
bin110001100110…
…100111101001
3220110122002112
4301212213221
511312100431
61142412105
7215345216
oct61464751
926418075
1013003241
117381589
124431035
132903834
141a26b0d
15121cc2b
hexc669e9

13003241 has 4 divisors (see below), whose sum is σ = 13060752. Its totient is φ = 12945732.

The previous prime is 13003231. The next prime is 13003247. The reversal of 13003241 is 14230031.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13003241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13003247) 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, 28415 + ... + 28868.

It is an arithmetic number, because the mean of its divisors is an integer number (3265188).

Almost surely, 213003241 is an apocalyptic number.

It is an amenable number.

13003241 is a deficient number, since it is larger than the sum of its proper divisors (57511).

13003241 is an equidigital number, since it uses as much as digits as its factorization.

13003241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57510.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 13003241 is about 3606.0006932889. Note that the first 3 decimals coincide. The cubic root of 13003241 is about 235.1530073426.

Adding to 13003241 its reverse (14230031), we get a palindrome (27233272).

The spelling of 13003241 in words is "thirteen million, three thousand, two hundred forty-one".

Divisors: 1 227 57283 13003241