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13245605 = 529167547
BaseRepresentation
bin110010100001…
…110010100101
3220220221112222
4302201302211
511342324410
61151522125
7220404632
oct62416245
926827488
1013245605
11752768a
124529345
132989c49
141a8b189
151269955
hexca1ca5

13245605 has 16 divisors (see below), whose sum is σ = 16571520. Its totient is φ = 10151232.

The previous prime is 13245599. The next prime is 13245607. The reversal of 13245605 is 50654231.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13245605 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13245607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23942 + ... + 24488.

It is an arithmetic number, because the mean of its divisors is an integer number (1035720).

Almost surely, 213245605 is an apocalyptic number.

It is an amenable number.

13245605 is a deficient number, since it is larger than the sum of its proper divisors (3325915).

13245605 is a wasteful number, since it uses less digits than its factorization.

13245605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 13245605 is about 3639.4511948919. The cubic root of 13245605 is about 236.6050082935.

Adding to 13245605 its reverse (50654231), we get a palindrome (63899836).

The spelling of 13245605 in words is "thirteen million, two hundred forty-five thousand, six hundred five".

Divisors: 1 5 29 145 167 547 835 2735 4843 15863 24215 79315 91349 456745 2649121 13245605