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30240120325 = 521213997201
BaseRepresentation
bin11100001010011100…
…111001111000000101
32220001111010021112111
4130022130321320011
5443412432322300
621520410421021
72120243532052
oct341234717005
986044107474
1030240120325
1111908839a88
125a3b431771
132b0c05892c
14166c2b2029
15bbec5a9ba
hex70a739e05

30240120325 has 12 divisors (see below), whose sum is σ = 37528700068. Its totient is φ = 24172128000.

The previous prime is 30240120289. The next prime is 30240120403. The reversal of 30240120325 is 52302104203.

It can be written as a sum of positive squares in 6 ways, for example, as 15072227361 + 15167892964 = 122769^2 + 123158^2 .

It is not a de Polignac number, because 30240120325 - 29 = 30240119813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30240120296 and 30240120305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 468276 + ... + 528925.

Almost surely, 230240120325 is an apocalyptic number.

It is an amenable number.

30240120325 is a deficient number, since it is larger than the sum of its proper divisors (7288579743).

30240120325 is a wasteful number, since it uses less digits than its factorization.

30240120325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998424 (or 998419 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 30240120325 its reverse (52302104203), we get a palindrome (82542224528).

The spelling of 30240120325 in words is "thirty billion, two hundred forty million, one hundred twenty thousand, three hundred twenty-five".

Divisors: 1 5 25 1213 6065 30325 997201 4986005 24930025 1209604813 6048024065 30240120325