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30304203223 = 72618453127
BaseRepresentation
bin11100001110010001…
…010111000111010111
32220012221201000202011
4130032101113013113
5444030334000343
621531020125051
72121652322500
oct341621270727
986187630664
1030304203223
1111940a29458
125a58996787
132b1c4050c8
1416769d3ba7
15bc56b829d
hex70e4571d7

30304203223 has 6 divisors (see below), whose sum is σ = 35251828296. Its totient is φ = 25975031292.

The previous prime is 30304203199. The next prime is 30304203227. The reversal of 30304203223 is 32230240303.

It is a de Polignac number, because none of the positive numbers 2k-30304203223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30304203194 and 30304203203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30304203227) 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 5 ways as a sum of consecutive naturals, for example, 309226515 + ... + 309226612.

It is an arithmetic number, because the mean of its divisors is an integer number (5875304716).

Almost surely, 230304203223 is an apocalyptic number.

30304203223 is a deficient number, since it is larger than the sum of its proper divisors (4947625073).

30304203223 is an equidigital number, since it uses as much as digits as its factorization.

30304203223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618453141 (or 618453134 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 22.

Adding to 30304203223 its reverse (32230240303), we get a palindrome (62534443526).

The spelling of 30304203223 in words is "thirty billion, three hundred four million, two hundred three thousand, two hundred twenty-three".

Divisors: 1 7 49 618453127 4329171889 30304203223