Search a number
-
+
1230000223 is a prime number
BaseRepresentation
bin100100101010000…
…0101000001011111
310011201110111002211
41021110011001133
510004340001343
6322015101251
742323554324
oct11124050137
93151414084
101230000223
11581337411
122a3b11827
13167a995aa
14b94dcb4b
1572eb479d
hex4950505f

1230000223 has 2 divisors, whose sum is σ = 1230000224. Its totient is φ = 1230000222.

The previous prime is 1230000209. The next prime is 1230000227. The reversal of 1230000223 is 3220000321.

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-1230000223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230000227) 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 as a sum of consecutive naturals, namely, 615000111 + 615000112.

It is an arithmetic number, because the mean of its divisors is an integer number (615000112).

Almost surely, 21230000223 is an apocalyptic number.

1230000223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230000223 is an equidigital number, since it uses as much as digits as its factorization.

1230000223 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 1230000223 is about 35071.3590127329. The cubic root of 1230000223 is about 1071.4413344418.

Adding to 1230000223 its reverse (3220000321), we get a palindrome (4450000544).

The spelling of 1230000223 in words is "one billion, two hundred thirty million, two hundred twenty-three", and thus it is an aban number.