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5172493 = 23224891
BaseRepresentation
bin10011101110110100001101
3100201210022211
4103232310031
52311004433
6302510421
761652104
oct23566415
910653284
105172493
112a13197
121895411
1310c1461
1498903b
156c28cd
hex4eed0d

5172493 has 4 divisors (see below), whose sum is σ = 5397408. Its totient is φ = 4947580.

The previous prime is 5172481. The next prime is 5172521. The reversal of 5172493 is 3942715.

5172493 is digitally balanced in base 3, 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.

It is a cyclic number.

It is not a de Polignac number, because 5172493 - 29 = 5171981 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5172463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112423 + ... + 112468.

It is an arithmetic number, because the mean of its divisors is an integer number (1349352).

Almost surely, 25172493 is an apocalyptic number.

It is an amenable number.

5172493 is a deficient number, since it is larger than the sum of its proper divisors (224915).

5172493 is a wasteful number, since it uses less digits than its factorization.

5172493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224914.

The product of its digits is 7560, while the sum is 31.

The square root of 5172493 is about 2274.3115441821. The cubic root of 5172493 is about 172.9417982794.

It can be divided in two parts, 5172 and 493, that added together give a palindrome (5665).

The spelling of 5172493 in words is "five million, one hundred seventy-two thousand, four hundred ninety-three".

Divisors: 1 23 224891 5172493