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13001589 = 325397281
BaseRepresentation
bin110001100110…
…001101110101
3220110112211100
4301212031311
511312022324
61142400313
7215340336
oct61461565
926415740
1013001589
117380317
124430099
132902b63
141a2628d
15121c4c9
hexc66375

13001589 has 24 divisors (see below), whose sum is σ = 19400472. Its totient is φ = 8386560.

The previous prime is 13001557. The next prime is 13001603. The reversal of 13001589 is 98510031.

It can be written as a sum of positive squares in 4 ways, for example, as 3802500 + 9199089 = 1950^2 + 3033^2 .

It is not a de Polignac number, because 13001589 - 25 = 13001557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13001539) 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 23 ways as a sum of consecutive naturals, for example, 46129 + ... + 46409.

It is an arithmetic number, because the mean of its divisors is an integer number (808353).

Almost surely, 213001589 is an apocalyptic number.

It is an amenable number.

13001589 is a deficient number, since it is larger than the sum of its proper divisors (6398883).

13001589 is a wasteful number, since it uses less digits than its factorization.

13001589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 13001589 is about 3605.7716233838. The cubic root of 13001589 is about 235.1430485634.

The spelling of 13001589 in words is "thirteen million, one thousand, five hundred eighty-nine".

Divisors: 1 3 9 53 97 159 281 291 477 843 873 2529 5141 14893 15423 27257 44679 46269 81771 134037 245313 1444621 4333863 13001589