Search a number
-
+
3030385 = 5606077
BaseRepresentation
bin1011100011110101110001
312200221220111
423203311301
51233433020
6144541321
734520641
oct13436561
95627814
103030385
11178a856
121021841
13821437
1458c521
153ecd5a
hex2e3d71

3030385 has 4 divisors (see below), whose sum is σ = 3636468. Its totient is φ = 2424304.

The previous prime is 3030383. The next prime is 3030389. The reversal of 3030385 is 5830303.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1940449 + 1089936 = 1393^2 + 1044^2 .

It is a cyclic number.

It is not a de Polignac number, because 3030385 - 21 = 3030383 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

3030385 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3030383) 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, 303034 + ... + 303043.

It is an arithmetic number, because the mean of its divisors is an integer number (909117).

Almost surely, 23030385 is an apocalyptic number.

It is an amenable number.

3030385 is a deficient number, since it is larger than the sum of its proper divisors (606083).

3030385 is an equidigital number, since it uses as much as digits as its factorization.

3030385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606082.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 3030385 is about 1740.8001034007. The cubic root of 3030385 is about 144.7102418044.

Adding to 3030385 its reverse (5830303), we get a palindrome (8860688).

The spelling of 3030385 in words is "three million, thirty thousand, three hundred eighty-five".

Divisors: 1 5 606077 3030385