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30080500805 = 56016100161
BaseRepresentation
bin11100000000111100…
…000000010001000101
32212122100202202201102
4130000330000101011
5443101102011210
621452505305445
72113265016035
oct340074002105
985570682642
1030080500805
1111836727523
1259b5a95285
132ab4c6c404
1416550018c5
15bb0c2aea5
hex700f00445

30080500805 has 4 divisors (see below), whose sum is σ = 36096600972. Its totient is φ = 24064400640.

The previous prime is 30080500783. The next prime is 30080500811. The reversal of 30080500805 is 50800508003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8787562564 + 21292938241 = 93742^2 + 145921^2 .

It is not a de Polignac number, because 30080500805 - 220 = 30079452229 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3008050076 + ... + 3008050085.

It is an arithmetic number, because the mean of its divisors is an integer number (9024150243).

Almost surely, 230080500805 is an apocalyptic number.

It is an amenable number.

30080500805 is a deficient number, since it is larger than the sum of its proper divisors (6016100167).

30080500805 is an equidigital number, since it uses as much as digits as its factorization.

30080500805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6016100166.

The product of its (nonzero) digits is 4800, while the sum is 29.

The spelling of 30080500805 in words is "thirty billion, eighty million, five hundred thousand, eight hundred five".

Divisors: 1 5 6016100161 30080500805