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13284823794749 = 13278608424821
BaseRepresentation
bin1100000101010001110100…
…1101000000010000111101
31202001000110012201110011122
43001110131031000100331
53220124304342412444
644130544103000325
72540540214042503
oct301243515002075
952030405643148
1013284823794749
114262075774401
1215a68307390a5
137549a45c5400
1433cdbb796673
1518087e8274ee
hexc151d34043d

13284823794749 has 6 divisors (see below), whose sum is σ = 14385341742426. Its totient is φ = 12262914271920.

The previous prime is 13284823794731. The next prime is 13284823794763. The reversal of 13284823794749 is 94749732848231.

It can be written as a sum of positive squares in 3 ways, for example, as 1173853068025 + 12110970726724 = 1083445^2 + 3480082^2 .

It is not a de Polignac number, because 13284823794749 - 212 = 13284823790653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13284823794779) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39304212242 + ... + 39304212579.

It is an arithmetic number, because the mean of its divisors is an integer number (2397556957071).

Almost surely, 213284823794749 is an apocalyptic number.

It is an amenable number.

13284823794749 is a deficient number, since it is larger than the sum of its proper divisors (1100517947677).

13284823794749 is an equidigital number, since it uses as much as digits as its factorization.

13284823794749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78608424847 (or 78608424834 counting only the distinct ones).

The product of its digits is 585252864, while the sum is 71.

The spelling of 13284823794749 in words is "thirteen trillion, two hundred eighty-four billion, eight hundred twenty-three million, seven hundred ninety-four thousand, seven hundred forty-nine".

Divisors: 1 13 169 78608424821 1021909522673 13284823794749