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13568245 = 52713649
BaseRepresentation
bin110011110000…
…100011110101
3221112100010121
4303300203311
511433140440
61202451541
7223220365
oct63604365
927470117
1013568245
117728029
124663bb1
132a70a62
141b329a5
1512d034a
hexcf08f5

13568245 has 4 divisors (see below), whose sum is σ = 16281900. Its totient is φ = 10854592.

The previous prime is 13568231. The next prime is 13568251. The reversal of 13568245 is 54286531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6922161 + 6646084 = 2631^2 + 2578^2 .

It is a cyclic number.

It is not a de Polignac number, because 13568245 - 25 = 13568213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13568245.

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 3 ways as a sum of consecutive naturals, for example, 1356820 + ... + 1356829.

It is an arithmetic number, because the mean of its divisors is an integer number (4070475).

Almost surely, 213568245 is an apocalyptic number.

It is an amenable number.

13568245 is a deficient number, since it is larger than the sum of its proper divisors (2713655).

13568245 is an equidigital number, since it uses as much as digits as its factorization.

13568245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2713654.

The product of its digits is 28800, while the sum is 34.

The square root of 13568245 is about 3683.5098751055. The cubic root of 13568245 is about 238.5107139038.

The spelling of 13568245 in words is "thirteen million, five hundred sixty-eight thousand, two hundred forty-five".

Divisors: 1 5 2713649 13568245