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1244332313 = 733627791
BaseRepresentation
bin100101000101011…
…0000000100011001
310012201102122000222
41022022300010121
510022022113223
6323250205425
742556436000
oct11212600431
93181378028
101244332313
11589436314
122a8883875
1316aa46c13
14bb38dc37
15743960c8
hex4a2b0119

1244332313 has 8 divisors (see below), whose sum is σ = 1451116800. Its totient is φ = 1066570260.

The previous prime is 1244332307. The next prime is 1244332321. The reversal of 1244332313 is 3132334421.

It is a de Polignac number, because none of the positive numbers 2k-1244332313 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1244332333) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1813553 + ... + 1814238.

It is an arithmetic number, because the mean of its divisors is an integer number (181389600).

Almost surely, 21244332313 is an apocalyptic number.

It is an amenable number.

1244332313 is a deficient number, since it is larger than the sum of its proper divisors (206784487).

1244332313 is an frugal number, since it uses more digits than its factorization.

1244332313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3627812 (or 3627798 counting only the distinct ones).

The product of its digits is 5184, while the sum is 26.

The square root of 1244332313 is about 35275.0947978882. The cubic root of 1244332313 is about 1075.5867899356.

Adding to 1244332313 its reverse (3132334421), we get a palindrome (4376666734).

The spelling of 1244332313 in words is "one billion, two hundred forty-four million, three hundred thirty-two thousand, three hundred thirteen".

Divisors: 1 7 49 343 3627791 25394537 177761759 1244332313