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13225243 = 371013539
BaseRepresentation
bin110010011100…
…110100011011
3220212220121211
4302130310123
511341201433
61151243551
7220261363
oct62346433
926786554
1013225243
117513359
1245195b7
1329808b5
141a839a3
1512638cd
hexc9cd1b

13225243 has 8 divisors (see below), whose sum is σ = 13721040. Its totient is φ = 12736800.

The previous prime is 13225237. The next prime is 13225259. The reversal of 13225243 is 34252231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13225243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13225213) 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 7 ways as a sum of consecutive naturals, for example, 1968 + ... + 5506.

It is an arithmetic number, because the mean of its divisors is an integer number (1715130).

Almost surely, 213225243 is an apocalyptic number.

13225243 is a deficient number, since it is larger than the sum of its proper divisors (495797).

13225243 is a wasteful number, since it uses less digits than its factorization.

13225243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3677.

The product of its digits is 1440, while the sum is 22.

The square root of 13225243 is about 3636.6527191911. The cubic root of 13225243 is about 236.4837046105.

Adding to 13225243 its reverse (34252231), we get a palindrome (47477474).

The spelling of 13225243 in words is "thirteen million, two hundred twenty-five thousand, two hundred forty-three".

Divisors: 1 37 101 3539 3737 130943 357439 13225243