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13443041 = 30494409
BaseRepresentation
bin110011010001…
…111111100001
3221021222101102
4303101333201
511420134131
61200044145
7222156353
oct63217741
927258342
1013443041
117651a57
124603655
132a28a81
141add0d3
1512a81cb
hexcd1fe1

13443041 has 4 divisors (see below), whose sum is σ = 13450500. Its totient is φ = 13435584.

The previous prime is 13443011. The next prime is 13443049. The reversal of 13443041 is 14034431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 14034431 = 24115821.

It can be written as a sum of positive squares in 2 ways, for example, as 1221025 + 12222016 = 1105^2 + 3496^2 .

It is a cyclic number.

It is not a de Polignac number, because 13443041 - 26 = 13442977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13443049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845 + ... + 5253.

It is an arithmetic number, because the mean of its divisors is an integer number (3362625).

Almost surely, 213443041 is an apocalyptic number.

It is an amenable number.

13443041 is a deficient number, since it is larger than the sum of its proper divisors (7459).

13443041 is an equidigital number, since it uses as much as digits as its factorization.

13443041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7458.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 13443041 is about 3666.4752828841. The cubic root of 13443041 is about 237.7748087688.

Adding to 13443041 its reverse (14034431), we get a palindrome (27477472).

The spelling of 13443041 in words is "thirteen million, four hundred forty-three thousand, forty-one".

Divisors: 1 3049 4409 13443041