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30487718612 = 2213586302281
BaseRepresentation
bin11100011001001101…
…011010101011010100
32220200202000120112102
4130121031122223110
5444414323443422
622001133341232
72126341222001
oct343115325324
986622016472
1030487718612
1111a2558226a
125aaa337818
132b4b43a0b0
1416931248a8
15bd6868192
hex71935aad4

30487718612 has 12 divisors (see below), whose sum is σ = 57457623636. Its totient is φ = 14071254720.

The previous prime is 30487718593. The next prime is 30487718663. The reversal of 30487718612 is 21681778403.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8501946436 + 21985772176 = 92206^2 + 148276^2 .

It is a congruent number.

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, 293151089 + ... + 293151192.

It is an arithmetic number, because the mean of its divisors is an integer number (4788135303).

Almost surely, 230487718612 is an apocalyptic number.

It is an amenable number.

30487718612 is a deficient number, since it is larger than the sum of its proper divisors (26969905024).

30487718612 is a wasteful number, since it uses less digits than its factorization.

30487718612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586302298 (or 586302296 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 30487718612 in words is "thirty billion, four hundred eighty-seven million, seven hundred eighteen thousand, six hundred twelve".

Divisors: 1 2 4 13 26 52 586302281 1172604562 2345209124 7621929653 15243859306 30487718612