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12888589 = 76727481
BaseRepresentation
bin110001001010…
…101000001101
3220020210211011
4301022220031
511244413324
61140125221
7214360030
oct61125015
926223734
1012888589
11730342a
124396811
1328935ac
1419d7017
1511e8c94
hexc4aa0d

12888589 has 8 divisors (see below), whose sum is σ = 14950208. Its totient is φ = 10882080.

The previous prime is 12888583. The next prime is 12888607. The reversal of 12888589 is 98588821.

It is a happy number.

12888589 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12888589 - 27 = 12888461 is a prime.

It is a super-2 number, since 2×128885892 = 332231452821842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12888583) 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, 13272 + ... + 14209.

It is an arithmetic number, because the mean of its divisors is an integer number (1868776).

Almost surely, 212888589 is an apocalyptic number.

It is an amenable number.

12888589 is a deficient number, since it is larger than the sum of its proper divisors (2061619).

12888589 is an equidigital number, since it uses as much as digits as its factorization.

12888589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27555.

The product of its digits is 368640, while the sum is 49.

The square root of 12888589 is about 3590.0681052036. The cubic root of 12888589 is about 234.4598367605.

The spelling of 12888589 in words is "twelve million, eight hundred eighty-eight thousand, five hundred eighty-nine".

Divisors: 1 7 67 469 27481 192367 1841227 12888589