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13210225 = 5271929137
BaseRepresentation
bin110010011001…
…001001110001
3220212011000121
4302121021301
511340211400
61151050241
7220166530
oct62311161
926764017
1013210225
117503046
124510981
132976b02
141a7c317
15125e21a
hexc99271

13210225 has 48 divisors (see below), whose sum is σ = 20534400. Its totient is φ = 8225280.

The previous prime is 13210213. The next prime is 13210237. The reversal of 13210225 is 52201231.

13210225 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13210213) and next prime (13210237).

It is not a de Polignac number, because 13210225 - 27 = 13210097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13210199 and 13210208.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 96357 + ... + 96493.

It is an arithmetic number, because the mean of its divisors is an integer number (427800).

Almost surely, 213210225 is an apocalyptic number.

It is an amenable number.

13210225 is a deficient number, since it is larger than the sum of its proper divisors (7324175).

13210225 is a wasteful number, since it uses less digits than its factorization.

13210225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 13210225 is about 3634.5873218290. The cubic root of 13210225 is about 236.3941572341.

Adding to 13210225 its reverse (52201231), we get a palindrome (65411456).

The spelling of 13210225 in words is "thirteen million, two hundred ten thousand, two hundred twenty-five".

Divisors: 1 5 7 19 25 29 35 95 133 137 145 175 203 475 551 665 685 725 959 1015 2603 2755 3325 3425 3857 3973 4795 5075 13015 13775 18221 19285 19865 23975 27811 65075 75487 91105 96425 99325 139055 377435 455525 528409 695275 1887175 2642045 13210225