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14042513 = 52126953
BaseRepresentation
bin110101100100…
…010110010001
3222102102201002
4311210112101
512043330023
61220551345
7230234162
oct65442621
928372632
1014042513
117a21391
124852555
132ba88a4
141c17769
151375b28
hexd64591

14042513 has 4 divisors (see below), whose sum is σ = 14069988. Its totient is φ = 14015040.

The previous prime is 14042503. The next prime is 14042537. The reversal of 14042513 is 31524041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31524041 = 193163337.

It can be written as a sum of positive squares in 2 ways, for example, as 6822544 + 7219969 = 2612^2 + 2687^2 .

It is a cyclic number.

It is not a de Polignac number, because 14042513 - 28 = 14042257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14042503) 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 3 ways as a sum of consecutive naturals, for example, 12956 + ... + 13997.

It is an arithmetic number, because the mean of its divisors is an integer number (3517497).

Almost surely, 214042513 is an apocalyptic number.

It is an amenable number.

14042513 is a deficient number, since it is larger than the sum of its proper divisors (27475).

14042513 is an equidigital number, since it uses as much as digits as its factorization.

14042513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27474.

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

The square root of 14042513 is about 3747.3341190772. The cubic root of 14042513 is about 241.2579379385.

Adding to 14042513 its reverse (31524041), we get a palindrome (45566554).

The spelling of 14042513 in words is "fourteen million, forty-two thousand, five hundred thirteen".

Divisors: 1 521 26953 14042513