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13143104421 = 39679452633
BaseRepresentation
bin11000011110110001…
…11101101110100101
31020220222001212211020
430033120331232211
5203404113320141
610012102201353
7643461354456
oct141730755645
936828055736
1013143104421
115634a37977
122669723259
131315c28085
148c977b12d
1551dcbd266
hex30f63dba5

13143104421 has 8 divisors (see below), whose sum is σ = 17525988480. Its totient is φ = 8761144992.

The previous prime is 13143104417. The next prime is 13143104473. The reversal of 13143104421 is 12440134131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13143104421 - 22 = 13143104417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13143104391 and 13143104400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143104021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197280 + ... + 255353.

It is an arithmetic number, because the mean of its divisors is an integer number (2190748560).

Almost surely, 213143104421 is an apocalyptic number.

It is an amenable number.

13143104421 is a deficient number, since it is larger than the sum of its proper divisors (4382884059).

13143104421 is an equidigital number, since it uses as much as digits as its factorization.

13143104421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462315.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 13143104421 its reverse (12440134131), we get a palindrome (25583238552).

The spelling of 13143104421 in words is "thirteen billion, one hundred forty-three million, one hundred four thousand, four hundred twenty-one".

Divisors: 1 3 9679 29037 452633 1357899 4381034807 13143104421