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13210425 = 335219571
BaseRepresentation
bin110010011001…
…001100111001
3220212011022000
4302121030321
511340213200
61151051213
7220200234
oct62311471
926764260
1013210425
117503208
124510b09
132976c27
141a7c41b
15125e300
hexc99339

13210425 has 24 divisors (see below), whose sum is σ = 24269280. Its totient is φ = 7045200.

The previous prime is 13210423. The next prime is 13210427. The reversal of 13210425 is 52401231.

13210425 is digitally balanced in base 2 and base 4, because in such bases 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 (13210423) and next prime (13210427).

It is not a de Polignac number, because 13210425 - 21 = 13210423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13210398 and 13210407.

It is not an unprimeable number, because it can be changed into a prime (13210423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9111 + ... + 10460.

It is an arithmetic number, because the mean of its divisors is an integer number (1011220).

Almost surely, 213210425 is an apocalyptic number.

13210425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13210425 is a deficient number, since it is larger than the sum of its proper divisors (11058855).

13210425 is a wasteful number, since it uses less digits than its factorization.

13210425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19590 (or 19579 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 13210425 is about 3634.6148351648. The cubic root of 13210425 is about 236.3953502139.

Adding to 13210425 its reverse (52401231), we get a palindrome (65611656).

The spelling of 13210425 in words is "thirteen million, two hundred ten thousand, four hundred twenty-five".

Divisors: 1 3 5 9 15 25 27 45 75 135 225 675 19571 58713 97855 176139 293565 489275 528417 880695 1467825 2642085 4403475 13210425