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13159726805 = 523173661459
BaseRepresentation
bin11000100000110000…
…10111111011010101
31020222010100101110002
430100120113323111
5203422342224210
610013454341045
7644052555311
oct142030277325
936863311402
1013159726805
115643360585
1226731ba785
1313194c7cc4
148cba66b41
155204a34a5
hex310617ed5

13159726805 has 16 divisors (see below), whose sum is σ = 16573541760. Its totient is φ = 10011828288.

The previous prime is 13159726771. The next prime is 13159726817. The reversal of 13159726805 is 50862795131.

13159726805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13159726805 - 228 = 12891291349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13159726805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310835 + ... + 350624.

It is an arithmetic number, because the mean of its divisors is an integer number (1035846360).

Almost surely, 213159726805 is an apocalyptic number.

It is an amenable number.

13159726805 is a deficient number, since it is larger than the sum of its proper divisors (3413814955).

13159726805 is a wasteful number, since it uses less digits than its factorization.

13159726805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661660.

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 13159726805 in words is "thirteen billion, one hundred fifty-nine million, seven hundred twenty-six thousand, eight hundred five".

Divisors: 1 5 23 115 173 865 3979 19895 661459 3307295 15213557 76067785 114432407 572162035 2631945361 13159726805