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30510523325 = 521220420933
BaseRepresentation
bin11100011010100100…
…011010001110111101
32220202022221011201102
4130122210122032331
5444441143221300
622003310222445
72130036112022
oct343244321675
986668834642
1030510523325
1111a37438837
125ab5ab4a25
132b53092cc9
14169617d549
15bd88700d5
hex71a91a3bd

30510523325 has 6 divisors (see below), whose sum is σ = 37833048954. Its totient is φ = 24408418640.

The previous prime is 30510523313. The next prime is 30510523331. The reversal of 30510523325 is 52332501503.

It can be written as a sum of positive squares in 3 ways, for example, as 1534994041 + 28975529284 = 39179^2 + 170222^2 .

It is not a de Polignac number, because 30510523325 - 218 = 30510261181 is a prime.

It is a Duffinian number.

It is a congruent 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 5 ways as a sum of consecutive naturals, for example, 610210442 + ... + 610210491.

It is an arithmetic number, because the mean of its divisors is an integer number (6305508159).

Almost surely, 230510523325 is an apocalyptic number.

It is an amenable number.

30510523325 is a deficient number, since it is larger than the sum of its proper divisors (7322525629).

30510523325 is a wasteful number, since it uses less digits than its factorization.

30510523325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220420943 (or 1220420938 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 29.

The spelling of 30510523325 in words is "thirty billion, five hundred ten million, five hundred twenty-three thousand, three hundred twenty-five".

Divisors: 1 5 25 1220420933 6102104665 30510523325