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30682724225 = 525323156773
BaseRepresentation
bin11100100100110101…
…010011011110000001
32221012022221212221112
4130210311103132001
51000314234133400
622032341133105
72134226565326
oct344465233601
987168855845
1030682724225
111201566392a
125b436ba195
132b7c96602a
1416b0da6b4d
15be8a37835
hex724d53781

30682724225 has 12 divisors (see below), whose sum is σ = 38764439676. Its totient is φ = 24083042880.

The previous prime is 30682724209. The next prime is 30682724299. The reversal of 30682724225 is 52242728603.

It can be written as a sum of positive squares in 6 ways, for example, as 989920369 + 29692803856 = 31463^2 + 172316^2 .

It is not a de Polignac number, because 30682724225 - 24 = 30682724209 is a prime.

It is a Duffinian 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, 11577062 + ... + 11579711.

It is an arithmetic number, because the mean of its divisors is an integer number (3230369973).

Almost surely, 230682724225 is an apocalyptic number.

It is an amenable number.

30682724225 is a deficient number, since it is larger than the sum of its proper divisors (8081715451).

30682724225 is a wasteful number, since it uses less digits than its factorization.

30682724225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23156836 (or 23156831 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 30682724225 in words is "thirty billion, six hundred eighty-two million, seven hundred twenty-four thousand, two hundred twenty-five".

Divisors: 1 5 25 53 265 1325 23156773 115783865 578919325 1227308969 6136544845 30682724225