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30305505505 = 511551009191
BaseRepresentation
bin11100001110010110…
…010101000011100001
32220020001011012010211
4130032112111003201
5444031202134010
621531104054121
72121666355312
oct341626250341
986201135124
1030305505505
1111941738920
125a59304341
132b1c76caa2
141676c52609
15bc587408a
hex70e5950e1

30305505505 has 8 divisors (see below), whose sum is σ = 39672661824. Its totient is φ = 22040367600.

The previous prime is 30305505497. The next prime is 30305505563. The reversal of 30305505505 is 50550550303.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30305505505 - 23 = 30305505497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275504541 + ... + 275504650.

It is an arithmetic number, because the mean of its divisors is an integer number (4959082728).

Almost surely, 230305505505 is an apocalyptic number.

It is an amenable number.

30305505505 is a deficient number, since it is larger than the sum of its proper divisors (9367156319).

30305505505 is a wasteful number, since it uses less digits than its factorization.

30305505505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551009207.

The product of its (nonzero) digits is 28125, while the sum is 31.

The spelling of 30305505505 in words is "thirty billion, three hundred five million, five hundred five thousand, five hundred five".

Divisors: 1 5 11 55 551009191 2755045955 6061101101 30305505505