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13113297 = 321457033
BaseRepresentation
bin110010000001…
…011111010001
3220200020001200
4302001133101
511324111142
61145021413
7216314121
oct62013721
926606050
1013113297
11744723a
124484869
132941962
141a54c81
15124064c
hexc817d1

13113297 has 6 divisors (see below), whose sum is σ = 18941442. Its totient is φ = 8742192.

The previous prime is 13113283. The next prime is 13113301. The reversal of 13113297 is 79231131.

It can be written as a sum of positive squares in only one way, i.e., 11861136 + 1252161 = 3444^2 + 1119^2 .

It is not a de Polignac number, because 13113297 - 210 = 13112273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13113297.

It is not an unprimeable number, because it can be changed into a prime (13113257) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 728508 + ... + 728525.

It is an arithmetic number, because the mean of its divisors is an integer number (3156907).

Almost surely, 213113297 is an apocalyptic number.

It is an amenable number.

13113297 is a deficient number, since it is larger than the sum of its proper divisors (5828145).

13113297 is a wasteful number, since it uses less digits than its factorization.

13113297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457039 (or 1457036 counting only the distinct ones).

The product of its digits is 1134, while the sum is 27.

The square root of 13113297 is about 3621.2286588947. The cubic root of 13113297 is about 235.8145687421.

The spelling of 13113297 in words is "thirteen million, one hundred thirteen thousand, two hundred ninety-seven".

Divisors: 1 3 9 1457033 4371099 13113297