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30303123113 = 43496967837
BaseRepresentation
bin11100001110001101…
…001111011010101001
32220012212200011010002
4130032031033122221
5444030044414423
621530541032345
72121640203464
oct341615173251
986185604102
1030303123113
11119403609aa
125a585556b5
132b1c1175a3
1416767d22db
15bc5553228
hex70e34f6a9

30303123113 has 4 divisors (see below), whose sum is σ = 30310095300. Its totient is φ = 30296150928.

The previous prime is 30303123077. The next prime is 30303123119. The reversal of 30303123113 is 31132130303.

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 2565219904 + 27737903209 = 50648^2 + 166547^2 .

It is a cyclic number.

It is not a de Polignac number, because 30303123113 - 224 = 30286345897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30303123119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3479570 + ... + 3488267.

It is an arithmetic number, because the mean of its divisors is an integer number (7577523825).

Almost surely, 230303123113 is an apocalyptic number.

It is an amenable number.

30303123113 is a deficient number, since it is larger than the sum of its proper divisors (6972187).

30303123113 is an equidigital number, since it uses as much as digits as its factorization.

30303123113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6972186.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 30303123113 its reverse (31132130303), we get a palindrome (61435253416).

The spelling of 30303123113 in words is "thirty billion, three hundred three million, one hundred twenty-three thousand, one hundred thirteen".

Divisors: 1 4349 6967837 30303123113