Base | Representation |
---|---|
bin | 11100000000111100… |
… | …000000010001000101 |
3 | 2212122100202202201102 |
4 | 130000330000101011 |
5 | 443101102011210 |
6 | 21452505305445 |
7 | 2113265016035 |
oct | 340074002105 |
9 | 85570682642 |
10 | 30080500805 |
11 | 11836727523 |
12 | 59b5a95285 |
13 | 2ab4c6c404 |
14 | 16550018c5 |
15 | bb0c2aea5 |
hex | 700f00445 |
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".
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