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13143140443 = 70131874111
BaseRepresentation
bin11000011110110010…
…00110100001011011
31020220222010201020101
430033121012201123
5203404120443233
610012103040231
7643461564466
oct141731064133
936828121211
1013143140443
115634a61a44
122669740077
131315c3b5a4
148c978a2dd
1551dcc8c7d
hex30f64685b

13143140443 has 4 divisors (see below), whose sum is σ = 13145021568. Its totient is φ = 13141259320.

The previous prime is 13143140377. The next prime is 13143140449. The reversal of 13143140443 is 34404134131.

It is a happy number.

13143140443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34404134131 = 37929841463.

It is a cyclic number.

It is not a de Polignac number, because 13143140443 - 217 = 13143009371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13143140449) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 930043 + ... + 944068.

It is an arithmetic number, because the mean of its divisors is an integer number (3286255392).

Almost surely, 213143140443 is an apocalyptic number.

13143140443 is a deficient number, since it is larger than the sum of its proper divisors (1881125).

13143140443 is an equidigital number, since it uses as much as digits as its factorization.

13143140443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881124.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 13143140443 its reverse (34404134131), we get a palindrome (47547274574).

The spelling of 13143140443 in words is "thirteen billion, one hundred forty-three million, one hundred forty thousand, four hundred forty-three".

Divisors: 1 7013 1874111 13143140443