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13205204 = 224197879
BaseRepresentation
bin110010010111…
…111011010100
3220211220010122
4302113323110
511340031304
61151011112
7220146065
oct62277324
926756118
1013205204
1174aa2a1
124509a98
13297473c
141a7a56c
15125c9be
hexc97ed4

13205204 has 12 divisors (see below), whose sum is σ = 23167200. Its totient is φ = 6586008.

The previous prime is 13205183. The next prime is 13205207. The reversal of 13205204 is 40250231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13205207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2264 + ... + 5615.

It is an arithmetic number, because the mean of its divisors is an integer number (1930600).

Almost surely, 213205204 is an apocalyptic number.

It is an amenable number.

13205204 is a deficient number, since it is larger than the sum of its proper divisors (9961996).

13205204 is a wasteful number, since it uses less digits than its factorization.

13205204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8302 (or 8300 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 13205204 is about 3633.8965312733. The cubic root of 13205204 is about 236.3642035310.

Adding to 13205204 its reverse (40250231), we get a palindrome (53455435).

The spelling of 13205204 in words is "thirteen million, two hundred five thousand, two hundred four".

Divisors: 1 2 4 419 838 1676 7879 15758 31516 3301301 6602602 13205204