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30331036105 = 56066207221
BaseRepresentation
bin11100001111110111…
…101110000111001001
32220021211012021112121
4130033313232013021
5444104221123410
621533415211241
72122426360456
oct341767560711
986254167477
1030331036105
1111955096397
125a65976b21
132b24b3b656
14167a3ba82d
15bc7c189da
hex70fdee1c9

30331036105 has 4 divisors (see below), whose sum is σ = 36397243332. Its totient is φ = 24264828880.

The previous prime is 30331036067. The next prime is 30331036111. The reversal of 30331036105 is 50163013303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50163013303 = 133858693331.

It can be written as a sum of positive squares in 2 ways, for example, as 3919260816 + 26411775289 = 62604^2 + 162517^2 .

It is not a de Polignac number, because 30331036105 - 221 = 30328938953 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 30331036105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3033103606 + ... + 3033103615.

It is an arithmetic number, because the mean of its divisors is an integer number (9099310833).

Almost surely, 230331036105 is an apocalyptic number.

It is an amenable number.

30331036105 is a deficient number, since it is larger than the sum of its proper divisors (6066207227).

30331036105 is an equidigital number, since it uses as much as digits as its factorization.

30331036105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6066207226.

The product of its (nonzero) digits is 2430, while the sum is 25.

Adding to 30331036105 its reverse (50163013303), we get a palindrome (80494049408).

The spelling of 30331036105 in words is "thirty billion, three hundred thirty-one million, thirty-six thousand, one hundred five".

Divisors: 1 5 6066207221 30331036105