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30305351321 = 78275234989
BaseRepresentation
bin11100001110010101…
…101111011010011001
32220020000212100122022
4130032111233122121
5444031132220241
621531100504225
72121665143640
oct341625573231
986200770568
1030305351321
1111941642aa3
125a5924b075
132b1c71785b
141676c12357
15bc584354b
hex70e56f699

30305351321 has 8 divisors (see below), whose sum is σ = 34676573760. Its totient is φ = 25944600528.

The previous prime is 30305351317. The next prime is 30305351339. The reversal of 30305351321 is 12315350303.

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

It is not a de Polignac number, because 30305351321 - 22 = 30305351317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30305353321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2611706 + ... + 2623283.

It is an arithmetic number, because the mean of its divisors is an integer number (4334571720).

Almost surely, 230305351321 is an apocalyptic number.

It is an amenable number.

30305351321 is a deficient number, since it is larger than the sum of its proper divisors (4371222439).

30305351321 is an equidigital number, since it uses as much as digits as its factorization.

30305351321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5235823.

The product of its (nonzero) digits is 4050, while the sum is 26.

The spelling of 30305351321 in words is "thirty billion, three hundred five million, three hundred fifty-one thousand, three hundred twenty-one".

Divisors: 1 7 827 5789 5234989 36644923 4329335903 30305351321