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12589423 = 721123357
BaseRepresentation
bin110000000001…
…100101101111
3212200121102221
4300001211233
511210330143
61125500211
7212002600
oct60014557
925617387
1012589423
117119690
124271667
1327ba382
141959da7
15118a2ed
hexc0196f

12589423 has 12 divisors (see below), whose sum is σ = 15976872. Its totient is φ = 9809520.

The previous prime is 12589417. The next prime is 12589439. The reversal of 12589423 is 32498521.

It is not a de Polignac number, because 12589423 - 29 = 12588911 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 (12589403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11140 + ... + 12217.

It is an arithmetic number, because the mean of its divisors is an integer number (1331406).

Almost surely, 212589423 is an apocalyptic number.

12589423 is a deficient number, since it is larger than the sum of its proper divisors (3387449).

12589423 is a wasteful number, since it uses less digits than its factorization.

12589423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23382 (or 23375 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 12589423 is about 3548.1576909715. The cubic root of 12589423 is about 232.6315469396.

The spelling of 12589423 in words is "twelve million, five hundred eighty-nine thousand, four hundred twenty-three".

Divisors: 1 7 11 49 77 539 23357 163499 256927 1144493 1798489 12589423