306048013 has 8 divisors (see below), whose sum is σ = 309368696. Its totient is φ = 302745600.

The previous prime is 306048011. The next prime is 306048019. The reversal of 306048013 is 310840603.

It can be written as a sum of positive squares in 4 ways, for example, as 32410249 + 273637764 = 5693^2 + 16542^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 306048013 - 2¹ = 306048011 is a prime.

It is a super-2 number, since 2×306048013² = 187330772522496338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306048011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30553 + ... + 39313.

It is an arithmetic number, because the mean of its divisors is an integer number (38671087).

Almost surely, 2^306048013 is an apocalyptic number.

It is an amenable number.

306048013 is a deficient number, since it is larger than the sum of its proper divisors (3320683).

306048013 is a wasteful number, since it uses less digits than its factorization.

306048013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9135.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 306048013 is about 17494.2279909689. The cubic root of 306048013 is about 673.9016526251.

Adding to 306048013 its reverse (310840603), we get a palindrome (616888616).

The spelling of 306048013 in words is "three hundred six million, forty-eight thousand, thirteen".