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223030897 is a prime number
BaseRepresentation
bin11010100101100…
…10111001110001
3120112200010212121
431102302321301
5424043442042
634044154241
75345505565
oct1522627161
9515603777
10223030897
11104993461
1262838981
133728c15b
14218996a5
15148a8367
hexd4b2e71

223030897 has 2 divisors, whose sum is σ = 223030898. Its totient is φ = 223030896.

The previous prime is 223030889. The next prime is 223030901. The reversal of 223030897 is 798030322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133841761 + 89189136 = 11569^2 + 9444^2 .

It is a cyclic number.

It is not a de Polignac number, because 223030897 - 23 = 223030889 is a prime.

It is not a weakly prime, because it can be changed into another prime (223030807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111515448 + 111515449.

It is an arithmetic number, because the mean of its divisors is an integer number (111515449).

Almost surely, 2223030897 is an apocalyptic number.

It is an amenable number.

223030897 is a deficient number, since it is larger than the sum of its proper divisors (1).

223030897 is an equidigital number, since it uses as much as digits as its factorization.

223030897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 223030897 is about 14934.2189953141. The cubic root of 223030897 is about 606.4407046344.

The spelling of 223030897 in words is "two hundred twenty-three million, thirty thousand, eight hundred ninety-seven".