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12231365 = 514711663
BaseRepresentation
bin101110101010…
…001011000101
3212000102021112
4232222023011
511112400430
61114054405
7205651646
oct56521305
925012245
1012231365
1169a4673
12411a405
1326c33c3
1418a56cd
151119195
hexbaa2c5

12231365 has 8 divisors (see below), whose sum is σ = 14696448. Its totient is φ = 9772560.

The previous prime is 12231311. The next prime is 12231367. The reversal of 12231365 is 56313221.

12231365 is digitally balanced in base 2 and base 3, because in such bases 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 not a de Polignac number, because 12231365 - 212 = 12227269 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12231365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231367) 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, 6524 + ... + 8186.

It is an arithmetic number, because the mean of its divisors is an integer number (1837056).

Almost surely, 212231365 is an apocalyptic number.

It is an amenable number.

12231365 is a deficient number, since it is larger than the sum of its proper divisors (2465083).

12231365 is a wasteful number, since it uses less digits than its factorization.

12231365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3139.

The product of its digits is 1080, while the sum is 23.

The square root of 12231365 is about 3497.3368439428. The cubic root of 12231365 is about 230.4048634699.

Adding to 12231365 its reverse (56313221), we get a palindrome (68544586).

The spelling of 12231365 in words is "twelve million, two hundred thirty-one thousand, three hundred sixty-five".

Divisors: 1 5 1471 1663 7355 8315 2446273 12231365