Search a number
-
+
5187229 = 10614889
BaseRepresentation
bin10011110010011010011101
3100202112112121
4103302122131
52311442404
6303102541
762043055
oct23623235
910675477
105187229
112a23273
1218a1a51
1310c8088
14990565
156c6e54
hex4f269d

5187229 has 4 divisors (see below), whose sum is σ = 5193180. Its totient is φ = 5181280.

The previous prime is 5187181. The next prime is 5187233. The reversal of 5187229 is 9227815.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9227815 = 51845563.

It can be written as a sum of positive squares in 2 ways, for example, as 3523129 + 1664100 = 1877^2 + 1290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5187229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5187194 and 5187203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5187239) 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, 1384 + ... + 3505.

It is an arithmetic number, because the mean of its divisors is an integer number (1298295).

Almost surely, 25187229 is an apocalyptic number.

It is an amenable number.

5187229 is a deficient number, since it is larger than the sum of its proper divisors (5951).

5187229 is a wasteful number, since it uses less digits than its factorization.

5187229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5950.

The product of its digits is 10080, while the sum is 34.

The square root of 5187229 is about 2277.5489017802. The cubic root of 5187229 is about 173.1058748048.

The spelling of 5187229 in words is "five million, one hundred eighty-seven thousand, two hundred twenty-nine".

Divisors: 1 1061 4889 5187229