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5031913 = 15713203
BaseRepresentation
bin10011001100011111101001
3100110122111011
4103030133221
52242010123
6255503521
760525205
oct23143751
910418434
105031913
112927607
121827ba1
131072483
1494db05
15695e0d
hex4cc7e9

5031913 has 4 divisors (see below), whose sum is σ = 5036688. Its totient is φ = 5027140.

The previous prime is 5031911. The next prime is 5031919. The reversal of 5031913 is 3191305.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5031913 - 21 = 5031911 is a prime.

It is a Smith number, since the sum of its digits (22) 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 not an unprimeable number, because it can be changed into a prime (5031911) 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, 31 + ... + 3172.

It is an arithmetic number, because the mean of its divisors is an integer number (1259172).

Almost surely, 25031913 is an apocalyptic number.

It is an amenable number.

5031913 is a deficient number, since it is larger than the sum of its proper divisors (4775).

5031913 is a wasteful number, since it uses less digits than its factorization.

5031913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4774.

The product of its (nonzero) digits is 405, while the sum is 22.

The square root of 5031913 is about 2243.1925909293. The cubic root of 5031913 is about 171.3606264800.

The spelling of 5031913 in words is "five million, thirty-one thousand, nine hundred thirteen".

Divisors: 1 1571 3203 5031913