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12133223 = 172924611
BaseRepresentation
bin101110010010…
…001101100111
3211211102122122
4232102031213
511101230343
61112020155
7205062554
oct56221547
924742578
1012133223
116937963
12409165b
13268a82b
14187ba2b
1510ea068
hexb92367

12133223 has 8 divisors (see below), whose sum is σ = 13290480. Its totient is φ = 11025280.

The previous prime is 12133217. The next prime is 12133241. The reversal of 12133223 is 32233121.

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 12133223 - 26 = 12133159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12133243) 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 7 ways as a sum of consecutive naturals, for example, 11813 + ... + 12798.

It is an arithmetic number, because the mean of its divisors is an integer number (1661310).

Almost surely, 212133223 is an apocalyptic number.

12133223 is a deficient number, since it is larger than the sum of its proper divisors (1157257).

12133223 is a wasteful number, since it uses less digits than its factorization.

12133223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24657.

The product of its digits is 216, while the sum is 17.

The square root of 12133223 is about 3483.2776231590. The cubic root of 12133223 is about 229.7869672049.

Adding to 12133223 its reverse (32233121), we get a palindrome (44366344).

The spelling of 12133223 in words is "twelve million, one hundred thirty-three thousand, two hundred twenty-three".

Divisors: 1 17 29 493 24611 418387 713719 12133223