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30321434120 = 235758035853
BaseRepresentation
bin11100001111010011…
…000101111000001000
32220021011010110002112
4130033103011320020
5444044241342440
621532433321452
72122251636365
oct341723057010
986234113075
1030321434120
111194a72826a
125a62706288
132b22b58cc3
141678ddb46c
15bc6e6d965
hex70f4c5e08

30321434120 has 16 divisors (see below), whose sum is σ = 68223226860. Its totient is φ = 12128573632.

The previous prime is 30321434113. The next prime is 30321434161. The reversal of 30321434120 is 2143412303.

It can be written as a sum of positive squares in 2 ways, for example, as 29096854084 + 1224580036 = 170578^2 + 34994^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379017887 + ... + 379017966.

Almost surely, 230321434120 is an apocalyptic number.

It is an amenable number.

30321434120 is an abundant number, since it is smaller than the sum of its proper divisors (37901792740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30321434120 is a wasteful number, since it uses less digits than its factorization.

30321434120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758035864 (or 758035860 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 30321434120 its reverse (2143412303), we get a palindrome (32464846423).

The spelling of 30321434120 in words is "thirty billion, three hundred twenty-one million, four hundred thirty-four thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 758035853 1516071706 3032143412 3790179265 6064286824 7580358530 15160717060 30321434120