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1230223 is a prime number
BaseRepresentation
bin100101100010110001111
32022111112211
410230112033
5303331343
642211251
713312441
oct4542617
92274484
101230223
11770315
124b3b27
13340c57
14240491
1519479d
hex12c58f

1230223 has 2 divisors, whose sum is σ = 1230224. Its totient is φ = 1230222.

The previous prime is 1230199. The next prime is 1230227. The reversal of 1230223 is 3220321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1230223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615111 + 615112.

It is an arithmetic number, because the mean of its divisors is an integer number (615112).

21230223 is an apocalyptic number.

1230223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230223 is an equidigital number, since it uses as much as digits as its factorization.

1230223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 1230223 is about 1109.1541822488. The cubic root of 1230223 is about 107.1506016836.

Adding to 1230223 its reverse (3220321), we get a palindrome (4450544).

The spelling of 1230223 in words is "one million, two hundred thirty thousand, two hundred twenty-three".