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13025909 = 134721319
BaseRepresentation
bin110001101100…
…001001110101
3220111210012002
4301230021311
511313312114
61143105045
7215501261
oct61541165
926453162
1013025909
117397616
124442185
132910c50
141a310a1
1512247de
hexc6c275

13025909 has 8 divisors (see below), whose sum is σ = 14327040. Its totient is φ = 11767536.

The previous prime is 13025899. The next prime is 13025911. The reversal of 13025909 is 90952031.

13025909 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13025909 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13025989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10049 + ... + 11270.

It is an arithmetic number, because the mean of its divisors is an integer number (1790880).

Almost surely, 213025909 is an apocalyptic number.

It is an amenable number.

13025909 is a deficient number, since it is larger than the sum of its proper divisors (1301131).

13025909 is a wasteful number, since it uses less digits than its factorization.

13025909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21379.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 13025909 is about 3609.1424189134. The cubic root of 13025909 is about 235.2895721144.

The spelling of 13025909 in words is "thirteen million, twenty-five thousand, nine hundred nine".

Divisors: 1 13 47 611 21319 277147 1001993 13025909