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30168301505 = 57184981131
BaseRepresentation
bin11100000110001010…
…111011111111000001
32212212110222111122012
4130012022323333001
5443241041122010
621505323222305
72115412221536
oct340612737701
985773874565
1030168301505
1111881246491
125a1b377995
132aca2012a4
141662938d8d
15bb87c1005
hex7062bbfc1

30168301505 has 8 divisors (see below), whose sum is σ = 36711849024. Its totient is φ = 23794716400.

The previous prime is 30168301477. The next prime is 30168301523. The reversal of 30168301505 is 50510386103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30168301505 - 232 = 25873334209 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 42490211 + ... + 42490920.

It is an arithmetic number, because the mean of its divisors is an integer number (4588981128).

Almost surely, 230168301505 is an apocalyptic number.

It is an amenable number.

30168301505 is a deficient number, since it is larger than the sum of its proper divisors (6543547519).

30168301505 is an equidigital number, since it uses as much as digits as its factorization.

30168301505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84981207.

The product of its (nonzero) digits is 10800, while the sum is 32.

Adding to 30168301505 its reverse (50510386103), we get a palindrome (80678687608).

The spelling of 30168301505 in words is "thirty billion, one hundred sixty-eight million, three hundred one thousand, five hundred five".

Divisors: 1 5 71 355 84981131 424905655 6033660301 30168301505