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13085773 = 124910477
BaseRepresentation
bin110001111010…
…110001001101
3220121211022021
4301322301031
511322221043
61144250141
7216140641
oct61726115
926554267
1013085773
117428598
124470951
13293227c
141a48c21
1512373ed
hexc7ac4d

13085773 has 4 divisors (see below), whose sum is σ = 13097500. Its totient is φ = 13074048.

The previous prime is 13085741. The next prime is 13085791. The reversal of 13085773 is 37758031.

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 7717284 + 5368489 = 2778^2 + 2317^2 .

It is a cyclic number.

It is not a de Polignac number, because 13085773 - 25 = 13085741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13085713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3990 + ... + 6487.

It is an arithmetic number, because the mean of its divisors is an integer number (3274375).

Almost surely, 213085773 is an apocalyptic number.

It is an amenable number.

13085773 is a deficient number, since it is larger than the sum of its proper divisors (11727).

13085773 is a wasteful number, since it uses less digits than its factorization.

13085773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11726.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 13085773 is about 3617.4262950335. The cubic root of 13085773 is about 235.6494664395.

The spelling of 13085773 in words is "thirteen million, eighty-five thousand, seven hundred seventy-three".

Divisors: 1 1249 10477 13085773