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30505305505 = 519321108479
BaseRepresentation
bin11100011010010000…
…100000010110100001
32220201222010002012211
4130122100200112201
5444433324234010
622003002322121
72126643550513
oct343220402641
986658102184
1030505305505
1111a344a4594
125ab41b9341
132b51c8703c
1416955c1bb3
15bd818e08a
hex71a4205a1

30505305505 has 8 divisors (see below), whose sum is σ = 38533017600. Its totient is φ = 23119810416.

The previous prime is 30505305499. The next prime is 30505305511. The reversal of 30505305505 is 50550350503.

It is an interprime number because it is at equal distance from previous prime (30505305499) and next prime (30505305511).

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

It is a cyclic number.

It is not a de Polignac number, because 30505305505 - 25 = 30505305473 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160554145 + ... + 160554334.

It is an arithmetic number, because the mean of its divisors is an integer number (4816627200).

Almost surely, 230505305505 is an apocalyptic number.

It is an amenable number.

30505305505 is a deficient number, since it is larger than the sum of its proper divisors (8027712095).

30505305505 is a wasteful number, since it uses less digits than its factorization.

30505305505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321108503.

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

The spelling of 30505305505 in words is "thirty billion, five hundred five million, three hundred five thousand, five hundred five".

Divisors: 1 5 19 95 321108479 1605542395 6101061101 30505305505