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12231319 = 67311587
BaseRepresentation
bin101110101010…
…001010010111
3212000102012211
4232222022113
511112400234
61114054251
7205651552
oct56521227
925012184
1012231319
1169a4631
12411a387
1326c3389
1418a5699
151119164
hexbaa297

12231319 has 8 divisors (see below), whose sum is σ = 12475008. Its totient is φ = 11989560.

The previous prime is 12231311. The next prime is 12231367. The reversal of 12231319 is 91313221.

12231319 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 12231319 - 23 = 12231311 is a prime.

It is a super-2 number, since 2×122313192 = 299210328959522, which contains 22 as substring.

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 12231319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231311) 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, 20544 + ... + 21130.

It is an arithmetic number, because the mean of its divisors is an integer number (1559376).

Almost surely, 212231319 is an apocalyptic number.

12231319 is a deficient number, since it is larger than the sum of its proper divisors (243689).

12231319 is an equidigital number, since it uses as much as digits as its factorization.

12231319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965.

The product of its digits is 324, while the sum is 22.

The square root of 12231319 is about 3497.3302675041. The cubic root of 12231319 is about 230.4045746323.

The spelling of 12231319 in words is "twelve million, two hundred thirty-one thousand, three hundred nineteen".

Divisors: 1 67 311 587 20837 39329 182557 12231319