30272313 has 4 divisors (see below), whose sum is σ = 40363088. Its totient is φ = 20181540.

The previous prime is 30272311. The next prime is 30272351. The reversal of 30272313 is 31327203.

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 an emirpimes, since its reverse is a distinct semiprime: 31327203 = 3 ⋅10442401.

It is not a de Polignac number, because 30272313 - 2¹ = 30272311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30272313.

It is not an unprimeable number, because it can be changed into a prime (30272311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5045383 + ... + 5045388.

It is an arithmetic number, because the mean of its divisors is an integer number (10090772).

Almost surely, 2^30272313 is an apocalyptic number.

It is an amenable number.

30272313 is a deficient number, since it is larger than the sum of its proper divisors (10090775).

30272313 is a wasteful number, since it uses less digits than its factorization.

30272313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10090774.

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 30272313 is about 5502.0280806263. The cubic root of 30272313 is about 311.6605755655.

Adding to 30272313 its reverse (31327203), we get a palindrome (61599516).

The spelling of 30272313 in words is "thirty million, two hundred seventy-two thousand, three hundred thirteen".