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13204525 = 521927799
BaseRepresentation
bin110010010111…
…110000101101
3220211212012111
4302113300231
511340021100
61151004021
7220144105
oct62276055
926755174
1013204525
1174a9834
124509611
132974339
141a7a205
15125c6ba
hexc97c2d

13204525 has 12 divisors (see below), whose sum is σ = 17236000. Its totient is φ = 10007280.

The previous prime is 13204519. The next prime is 13204537. The reversal of 13204525 is 52540231.

It is not a de Polignac number, because 13204525 - 23 = 13204517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13204496 and 13204505.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 13425 + ... + 14374.

Almost surely, 213204525 is an apocalyptic number.

It is an amenable number.

13204525 is a deficient number, since it is larger than the sum of its proper divisors (4031475).

13204525 is a wasteful number, since it uses less digits than its factorization.

13204525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27828 (or 27823 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 13204525 is about 3633.8031041871. The cubic root of 13204525 is about 236.3601522483.

Adding to 13204525 its reverse (52540231), we get a palindrome (65744756).

The spelling of 13204525 in words is "thirteen million, two hundred four thousand, five hundred twenty-five".

Divisors: 1 5 19 25 95 475 27799 138995 528181 694975 2640905 13204525