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1200309013 is a prime number
BaseRepresentation
bin100011110001011…
…0100001100010101
310002122121000102101
41013202310030111
54424234342023
6315034442101
741513313121
oct10742641425
93078530371
101200309013
115665a7a22
12295b93331
131618a2027
14b55b0581
157059c1ad
hex478b4315

1200309013 has 2 divisors, whose sum is σ = 1200309014. Its totient is φ = 1200309012.

The previous prime is 1200309007. The next prime is 1200309029. The reversal of 1200309013 is 3109030021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1183841649 + 16467364 = 34407^2 + 4058^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1200309013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200309113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600154506 + 600154507.

It is an arithmetic number, because the mean of its divisors is an integer number (600154507).

Almost surely, 21200309013 is an apocalyptic number.

It is an amenable number.

1200309013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200309013 is an equidigital number, since it uses as much as digits as its factorization.

1200309013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 1200309013 is about 34645.4760827442. The cubic root of 1200309013 is about 1062.7497767186.

Adding to 1200309013 its reverse (3109030021), we get a palindrome (4309339034).

The spelling of 1200309013 in words is "one billion, two hundred million, three hundred nine thousand, thirteen".