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12133588 = 221392157
BaseRepresentation
bin101110010010…
…010011010100
3211211110011011
4232102103110
511101233323
61112022004
7205063615
oct56222324
924743134
1012133588
116938165
124091904
13268aa4c
14187bc0c
1510ea20d
hexb924d4

12133588 has 18 divisors (see below), whose sum is σ = 21523866. Its totient is φ = 5984784.

The previous prime is 12133577. The next prime is 12133603. The reversal of 12133588 is 88533121.

12133588 is nontrivially palindromic in base 12.

It can be written as a sum of positive squares in only one way, i.e., 9351364 + 2782224 = 3058^2 + 1668^2 .

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 77206 + ... + 77362.

Almost surely, 212133588 is an apocalyptic number.

It is an amenable number.

12133588 is a deficient number, since it is larger than the sum of its proper divisors (9390278).

12133588 is a wasteful number, since it uses less digits than its factorization.

12133588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439 (or 298 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The square root of 12133588 is about 3483.3300159474. The cubic root of 12133588 is about 229.7892713852.

It can be divided in two parts, 12133 and 588, that added together give a palindrome (12721).

The spelling of 12133588 in words is "twelve million, one hundred thirty-three thousand, five hundred eighty-eight".

Divisors: 1 2 4 139 157 278 314 556 628 19321 21823 38642 43646 77284 87292 3033397 6066794 12133588