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1200312041 = 5322647397
BaseRepresentation
bin100011110001011…
…0100111011101001
310002122121011120112
41013202310323221
54424234441131
6315034504105
741513325005
oct10742647351
93078534515
101200312041
115665aa225
12295b95035
131618a3516
14b55b1705
157059d02b
hex478b4ee9

1200312041 has 4 divisors (see below), whose sum is σ = 1222959492. Its totient is φ = 1177664592.

The previous prime is 1200312011. The next prime is 1200312073. The reversal of 1200312041 is 1402130021.

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 323856016 + 876456025 = 17996^2 + 29605^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200312041 - 230 = 126570217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200312011) by changing a digit.

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, 11323646 + ... + 11323751.

It is an arithmetic number, because the mean of its divisors is an integer number (305739873).

Almost surely, 21200312041 is an apocalyptic number.

It is an amenable number.

1200312041 is a deficient number, since it is larger than the sum of its proper divisors (22647451).

1200312041 is an equidigital number, since it uses as much as digits as its factorization.

1200312041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22647450.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1200312041 is about 34645.5197825058. The cubic root of 1200312041 is about 1062.7506703784.

Adding to 1200312041 its reverse (1402130021), we get a palindrome (2602442062).

The spelling of 1200312041 in words is "one billion, two hundred million, three hundred twelve thousand, forty-one".

Divisors: 1 53 22647397 1200312041