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3085130665 = 5617026133
BaseRepresentation
bin1011011111100011…
…0101101110101001
321222000012212122201
42313320311232221
522304243140130
61230045020201
7136311115021
oct26770655651
97860185581
103085130665
111343526371
12721254661
133a2220006
14213a46a81
15130cacbca
hexb7e35ba9

3085130665 has 4 divisors (see below), whose sum is σ = 3702156804. Its totient is φ = 2468104528.

The previous prime is 3085130651. The next prime is 3085130683. The reversal of 3085130665 is 5660315803.

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 312476329 + 2772654336 = 17677^2 + 52656^2 .

It is a cyclic number.

It is not a de Polignac number, because 3085130665 - 211 = 3085128617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308513062 + ... + 308513071.

It is an arithmetic number, because the mean of its divisors is an integer number (925539201).

Almost surely, 23085130665 is an apocalyptic number.

It is an amenable number.

3085130665 is a deficient number, since it is larger than the sum of its proper divisors (617026139).

3085130665 is an equidigital number, since it uses as much as digits as its factorization.

3085130665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617026138.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 3085130665 is about 55543.9525511104. The cubic root of 3085130665 is about 1455.7647110096.

It can be divided in two parts, 30851 and 30665, that added together give a palindrome (61516).

The spelling of 3085130665 in words is "three billion, eighty-five million, one hundred thirty thousand, six hundred sixty-five".

Divisors: 1 5 617026133 3085130665