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12760430242721 = 72260416943729
BaseRepresentation
bin1011100110110000010011…
…1010010110101110100001
31200011212220022201220100012
42321230010322112232201
53133031330120231341
643050021041134305
72454624233304500
oct271540472265641
950155808656305
1012760430242721
11407a739232257
12152108232a395
137173c37868a5
14321872970837
15171ddc3b50eb
hexb9b04e96ba1

12760430242721 has 6 divisors (see below), whose sum is σ = 14843765792610. Its totient is φ = 10937511636576.

The previous prime is 12760430242687. The next prime is 12760430242789. The reversal of 12760430242721 is 12724203406721.

It is a happy number.

12760430242721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9419252046400 + 3341178196321 = 3069080^2 + 1827889^2 .

It is not a de Polignac number, because 12760430242721 - 214 = 12760430226337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12760430242421) 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, 130208471816 + ... + 130208471913.

It is an arithmetic number, because the mean of its divisors is an integer number (2473960965435).

Almost surely, 212760430242721 is an apocalyptic number.

It is an amenable number.

12760430242721 is a deficient number, since it is larger than the sum of its proper divisors (2083335549889).

12760430242721 is an equidigital number, since it uses as much as digits as its factorization.

12760430242721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260416943743 (or 260416943736 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 41.

The spelling of 12760430242721 in words is "twelve trillion, seven hundred sixty billion, four hundred thirty million, two hundred forty-two thousand, seven hundred twenty-one".

Divisors: 1 7 49 260416943729 1822918606103 12760430242721