Search a number
-
+
12185828 = 2216371861
BaseRepresentation
bin101110011111…
…000011100100
3211221002210222
4232133003210
511104421303
61113103512
7205402124
oct56370344
924832728
1012185828
116973436
1240b7b98
1326a8765
141892c84
15110a938
hexb9f0e4

12185828 has 12 divisors (see below), whose sum is σ = 21349692. Its totient is φ = 6085920.

The previous prime is 12185809. The next prime is 12185843. The reversal of 12185828 is 82858121.

It can be written as a sum of positive squares in 2 ways, for example, as 131044 + 12054784 = 362^2 + 3472^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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, 5618 + ... + 7478.

It is an arithmetic number, because the mean of its divisors is an integer number (1779141).

Almost surely, 212185828 is an apocalyptic number.

It is an amenable number.

12185828 is a deficient number, since it is larger than the sum of its proper divisors (9163864).

12185828 is a wasteful number, since it uses less digits than its factorization.

12185828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3502 (or 3500 counting only the distinct ones).

The product of its digits is 10240, while the sum is 35.

The square root of 12185828 is about 3490.8205339146. The cubic root of 12185828 is about 230.1185777974.

The spelling of 12185828 in words is "twelve million, one hundred eighty-five thousand, eight hundred twenty-eight".

Divisors: 1 2 4 1637 1861 3274 3722 6548 7444 3046457 6092914 12185828