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13245305 = 547157359
BaseRepresentation
bin110010100001…
…101101111001
3220220221010212
4302201231321
511342322210
61151520505
7220404023
oct62415571
926827125
1013245305
117527437
124529135
132989a78
141a8b013
151269805
hexca1b79

13245305 has 16 divisors (see below), whose sum is σ = 16381440. Its totient is φ = 10276032.

The previous prime is 13245301. The next prime is 13245307. The reversal of 13245305 is 50354231.

It is a cyclic number.

It is not a de Polignac number, because 13245305 - 22 = 13245301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13245301) 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 15 ways as a sum of consecutive naturals, for example, 36716 + ... + 37074.

It is an arithmetic number, because the mean of its divisors is an integer number (1023840).

Almost surely, 213245305 is an apocalyptic number.

It is an amenable number.

13245305 is a deficient number, since it is larger than the sum of its proper divisors (3136135).

13245305 is a wasteful number, since it uses less digits than its factorization.

13245305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 13245305 is about 3639.4099796533. The cubic root of 13245305 is about 236.6032219893.

Adding to 13245305 its reverse (50354231), we get a palindrome (63599536).

The spelling of 13245305 in words is "thirteen million, two hundred forty-five thousand, three hundred five".

Divisors: 1 5 47 157 235 359 785 1795 7379 16873 36895 56363 84365 281815 2649061 13245305