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13042541 = 23567067
BaseRepresentation
bin110001110000…
…001101101101
3220112122000002
4301300031231
511314330131
61143314045
7215600621
oct61601555
926478002
1013042541
1173a9066
12444b925
1329186a5
141a37181
1512296cb
hexc7036d

13042541 has 4 divisors (see below), whose sum is σ = 13609632. Its totient is φ = 12475452.

The previous prime is 13042529. The next prime is 13042559. The reversal of 13042541 is 14524031.

13042541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14524031 = 85317027.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13042541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13042501) 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, 283511 + ... + 283556.

It is an arithmetic number, because the mean of its divisors is an integer number (3402408).

Almost surely, 213042541 is an apocalyptic number.

It is an amenable number.

13042541 is a deficient number, since it is larger than the sum of its proper divisors (567091).

13042541 is an equidigital number, since it uses as much as digits as its factorization.

13042541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567090.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 13042541 is about 3611.4458323503. The cubic root of 13042541 is about 235.3896718918.

Adding to 13042541 its reverse (14524031), we get a palindrome (27566572).

The spelling of 13042541 in words is "thirteen million, forty-two thousand, five hundred forty-one".

Divisors: 1 23 567067 13042541