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27248180005 = 55449636001
BaseRepresentation
bin11001011000000111…
…100011101100100101
32121022222020222000001
4121120013203230211
5421301013230010
620303451021301
71653143465014
oct313007435445
977288228001
1027248180005
1110612983a32
12534543a831
132753236a47
141466ba6a7b
15a97259c3a
hex6581e3b25

27248180005 has 4 divisors (see below), whose sum is σ = 32697816012. Its totient is φ = 21798544000.

The previous prime is 27248179991. The next prime is 27248180053. The reversal of 27248180005 is 50008184272.

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 21003545476 + 6244634529 = 144926^2 + 79023^2 .

It is not a de Polignac number, because 27248180005 - 27 = 27248179877 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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2724817996 + ... + 2724818005.

It is an arithmetic number, because the mean of its divisors is an integer number (8174454003).

Almost surely, 227248180005 is an apocalyptic number.

It is an amenable number.

27248180005 is a deficient number, since it is larger than the sum of its proper divisors (5449636007).

27248180005 is an equidigital number, since it uses as much as digits as its factorization.

27248180005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5449636006.

The product of its (nonzero) digits is 35840, while the sum is 37.

The spelling of 27248180005 in words is "twenty-seven billion, two hundred forty-eight million, one hundred eighty thousand, five".

Divisors: 1 5 5449636001 27248180005