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12230689 is a prime number
BaseRepresentation
bin101110101010…
…000000100001
3212000101100111
4232222000201
511112340224
61114051321
7205646662
oct56520041
925011314
1012230689
1169a4109
124119b41
1326c2cc3
1418a5369
151118d94
hexbaa021

12230689 has 2 divisors, whose sum is σ = 12230690. Its totient is φ = 12230688.

The previous prime is 12230677. The next prime is 12230693. The reversal of 12230689 is 98603221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11614464 + 616225 = 3408^2 + 785^2 .

It is an emirp because it is prime and its reverse (98603221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12230689 - 25 = 12230657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12230689.

It is not a weakly prime, because it can be changed into another prime (12230629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6115344 + 6115345.

It is an arithmetic number, because the mean of its divisors is an integer number (6115345).

Almost surely, 212230689 is an apocalyptic number.

It is an amenable number.

12230689 is a deficient number, since it is larger than the sum of its proper divisors (1).

12230689 is an equidigital number, since it uses as much as digits as its factorization.

12230689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 12230689 is about 3497.2401976416. The cubic root of 12230689 is about 230.4006187391.

The spelling of 12230689 in words is "twelve million, two hundred thirty thousand, six hundred eighty-nine".