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13436345 = 513215901
BaseRepresentation
bin110011010000…
…010110111001
3221021122012102
4303100112321
511414430340
61155553145
7222131006
oct63202671
927248172
1013436345
117647a1a
1245bb7b5
132a25a00
141ada8ad
1512a6215
hexcd05b9

13436345 has 12 divisors (see below), whose sum is σ = 17460396. Its totient is φ = 9921600.

The previous prime is 13436329. The next prime is 13436359. The reversal of 13436345 is 54363431.

13436345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 157609 + 13278736 = 397^2 + 3644^2 .

It is not a de Polignac number, because 13436345 - 24 = 13436329 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7106 + ... + 8795.

It is an arithmetic number, because the mean of its divisors is an integer number (1455033).

Almost surely, 213436345 is an apocalyptic number.

It is an amenable number.

13436345 is a deficient number, since it is larger than the sum of its proper divisors (4024051).

13436345 is a wasteful number, since it uses less digits than its factorization.

13436345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15932 (or 15919 counting only the distinct ones).

The product of its digits is 12960, while the sum is 29.

The square root of 13436345 is about 3665.5620305759. The cubic root of 13436345 is about 237.7353235427.

Adding to 13436345 its reverse (54363431), we get a palindrome (67799776).

The spelling of 13436345 in words is "thirteen million, four hundred thirty-six thousand, three hundred forty-five".

Divisors: 1 5 13 65 169 845 15901 79505 206713 1033565 2687269 13436345