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12730826512958 = 219773774329733
BaseRepresentation
bin1011100101000010000001…
…1001000101101000111110
31200002001111012002121112112
42321100200121011220332
53132040213041403313
643024243322334022
72452525514614451
oct271204031055076
950061435077475
1012730826512958
114069127746994
1215173a005a312
13714686528528
14320264dd9498
151712584648a8
hexb9420645a3e

12730826512958 has 16 divisors (see below), whose sum is σ = 20101569447120. Its totient is φ = 6030312178176.

The previous prime is 12730826512949. The next prime is 12730826513071. The reversal of 12730826512958 is 85921562803721.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12730826512897 and 12730826512906.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 775460 + ... + 5105192.

It is an arithmetic number, because the mean of its divisors is an integer number (1256348090445).

Almost surely, 212730826512958 is an apocalyptic number.

12730826512958 is a deficient number, since it is larger than the sum of its proper divisors (7370742934162).

12730826512958 is a wasteful number, since it uses less digits than its factorization.

12730826512958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4407131.

The product of its (nonzero) digits is 14515200, while the sum is 59.

The spelling of 12730826512958 in words is "twelve trillion, seven hundred thirty billion, eight hundred twenty-six million, five hundred twelve thousand, nine hundred fifty-eight".

Divisors: 1 2 19 38 77377 154754 1470163 2940326 4329733 8659466 82264927 164529854 335021750341 670043500682 6365413256479 12730826512958