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13386841 = 131029757
BaseRepresentation
bin110011000100…
…010001011001
3221012010021221
4303010101121
511411334331
61154532041
7221533456
oct63042131
927163257
1013386841
117613806
124597021
132a09310
141ac682d
151296711
hexcc4459

13386841 has 4 divisors (see below), whose sum is σ = 14416612. Its totient is φ = 12357072.

The previous prime is 13386839. The next prime is 13386847. The reversal of 13386841 is 14868331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 577600 + 12809241 = 760^2 + 3579^2 .

It is not a de Polignac number, because 13386841 - 21 = 13386839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13386797 and 13386806.

It is not an unprimeable number, because it can be changed into a prime (13386847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514866 + ... + 514891.

It is an arithmetic number, because the mean of its divisors is an integer number (3604153).

Almost surely, 213386841 is an apocalyptic number.

It is an amenable number.

13386841 is a deficient number, since it is larger than the sum of its proper divisors (1029771).

13386841 is a wasteful number, since it uses less digits than its factorization.

13386841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029770.

The product of its digits is 13824, while the sum is 34.

The square root of 13386841 is about 3658.8032196334. The cubic root of 13386841 is about 237.4429986935.

The spelling of 13386841 in words is "thirteen million, three hundred eighty-six thousand, eight hundred forty-one".

Divisors: 1 13 1029757 13386841