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12306089 = 37349953
BaseRepresentation
bin101110111100…
…011010101001
3212011012210002
4232330122221
511122243324
61115432345
7206412545
oct56743251
925135702
1012306089
116a45824
1241556b5
13271b413
1418c4a25
1511313ae
hexbbc6a9

12306089 has 8 divisors (see below), whose sum is σ = 12688200. Its totient is φ = 11926656.

The previous prime is 12306061. The next prime is 12306137. The reversal of 12306089 is 98060321.

12306089 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5107600 + 7198489 = 2260^2 + 2683^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12306089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12306029) 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, 12437 + ... + 13389.

It is an arithmetic number, because the mean of its divisors is an integer number (1586025).

Almost surely, 212306089 is an apocalyptic number.

It is an amenable number.

12306089 is a deficient number, since it is larger than the sum of its proper divisors (382111).

12306089 is an equidigital number, since it uses as much as digits as its factorization.

12306089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 12306089 is about 3508.0035632821. The cubic root of 12306089 is about 230.8731085984.

The spelling of 12306089 in words is "twelve million, three hundred six thousand, eighty-nine".

Divisors: 1 37 349 953 12913 35261 332597 12306089