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30345441321 = 3137310658743
BaseRepresentation
bin11100010000101110…
…101011000000101001
32220022211022010210010
4130100232223000221
5444121413110241
621535052042133
72122662665256
oct342056530051
986284263703
1030345441321
1111962235228
125a6a763349
132b27b13350
14167c28a42d
15bc9111d16
hex710bab029

30345441321 has 16 divisors (see below), whose sum is σ = 44169835136. Its totient is φ = 18418306176.

The previous prime is 30345441317. The next prime is 30345441349. The reversal of 30345441321 is 12314454303.

It is not a de Polignac number, because 30345441321 - 22 = 30345441317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30345441121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5326525 + ... + 5332218.

It is an arithmetic number, because the mean of its divisors is an integer number (2760614696).

Almost surely, 230345441321 is an apocalyptic number.

It is an amenable number.

30345441321 is a deficient number, since it is larger than the sum of its proper divisors (13824393815).

30345441321 is a wasteful number, since it uses less digits than its factorization.

30345441321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10658832.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 30345441321 its reverse (12314454303), we get a palindrome (42659895624).

The spelling of 30345441321 in words is "thirty billion, three hundred forty-five million, four hundred forty-one thousand, three hundred twenty-one".

Divisors: 1 3 13 39 73 219 949 2847 10658743 31976229 138563659 415690977 778088239 2334264717 10115147107 30345441321