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13046643161 = 14239168407
BaseRepresentation
bin11000010011010001…
…11111100111011001
31020200020120010211222
430021220333213121
5203204420040121
65554334501425
7641210431346
oct141150774731
936606503758
1013046643161
115595543122
122641364875
1312cbc531c6
148baa2b7cd
155155b70ab
hex309a3f9d9

13046643161 has 4 divisors (see below), whose sum is σ = 13055812992. Its totient is φ = 13037473332.

The previous prime is 13046643121. The next prime is 13046643199. The reversal of 13046643161 is 16134664031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13046643161 - 210 = 13046642137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13046643101) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4582781 + ... + 4585626.

It is an arithmetic number, because the mean of its divisors is an integer number (3263953248).

Almost surely, 213046643161 is an apocalyptic number.

It is an amenable number.

13046643161 is a deficient number, since it is larger than the sum of its proper divisors (9169831).

13046643161 is an equidigital number, since it uses as much as digits as its factorization.

13046643161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9169830.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 13046643161 in words is "thirteen billion, forty-six million, six hundred forty-three thousand, one hundred sixty-one".

Divisors: 1 1423 9168407 13046643161