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5042513 = 7720359
BaseRepresentation
bin10011001111000101010001
3100111012000202
4103033011101
52242330023
6300024545
760601130
oct23170521
910435022
105042513
112934573
121832155
131077248
14953917
15699128
hex4cf151

5042513 has 4 divisors (see below), whose sum is σ = 5762880. Its totient is φ = 4322148.

The previous prime is 5042507. The next prime is 5042539. The reversal of 5042513 is 3152405.

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: 3152405 = 5630481.

It is a cyclic number.

It is not a de Polignac number, because 5042513 - 210 = 5041489 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 (5042563) 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, 360173 + ... + 360186.

It is an arithmetic number, because the mean of its divisors is an integer number (1440720).

Almost surely, 25042513 is an apocalyptic number.

It is an amenable number.

5042513 is a deficient number, since it is larger than the sum of its proper divisors (720367).

5042513 is an equidigital number, since it uses as much as digits as its factorization.

5042513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720366.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 5042513 is about 2245.5540518990. The cubic root of 5042513 is about 171.4808689316.

Adding to 5042513 its reverse (3152405), we get a palindrome (8194918).

It can be divided in two parts, 5042 and 513, that added together give a palindrome (5555).

The spelling of 5042513 in words is "five million, forty-two thousand, five hundred thirteen".

Divisors: 1 7 720359 5042513