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30313032313 = 73094147357
BaseRepresentation
bin11100001110110011…
…000010101001111001
32220020120022120222111
4130032303002221321
5444040114013223
621531533252321
72122120344334
oct341663025171
986216276874
1030313032313
1111945a09923
125a5b9340a1
132b211a6a15
141677c5161b
15bc635e30d
hex70ecc2a79

30313032313 has 4 divisors (see below), whose sum is σ = 30317186980. Its totient is φ = 30308877648.

The previous prime is 30313032301. The next prime is 30313032317. The reversal of 30313032313 is 31323031303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31323031303 = 217914374957.

It can be written as a sum of positive squares in 2 ways, for example, as 24061283689 + 6251748624 = 155117^2 + 79068^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30313032313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30313032317) 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, 2066370 + ... + 2080987.

It is an arithmetic number, because the mean of its divisors is an integer number (7579296745).

Almost surely, 230313032313 is an apocalyptic number.

It is an amenable number.

30313032313 is a deficient number, since it is larger than the sum of its proper divisors (4154667).

30313032313 is an equidigital number, since it uses as much as digits as its factorization.

30313032313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4154666.

The product of its (nonzero) digits is 1458, while the sum is 22.

Adding to 30313032313 its reverse (31323031303), we get a palindrome (61636063616).

The spelling of 30313032313 in words is "thirty billion, three hundred thirteen million, thirty-two thousand, three hundred thirteen".

Divisors: 1 7309 4147357 30313032313