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223055471 is a prime number
BaseRepresentation
bin11010100101110…
…00111001101111
3120112201101120202
431102320321233
5424100233341
634044504115
75345640332
oct1522707157
9515641522
10223055471
111049aa971
126284b03b
133729a3b2
14218a4619
15148b079b
hexd4b8e6f

223055471 has 2 divisors, whose sum is σ = 223055472. Its totient is φ = 223055470.

The previous prime is 223055431. The next prime is 223055489. The reversal of 223055471 is 174550322.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223055471 - 26 = 223055407 is a prime.

It is a super-3 number, since 3×2230554713 (a number of 26 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223055431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111527735 + 111527736.

It is an arithmetic number, because the mean of its divisors is an integer number (111527736).

Almost surely, 2223055471 is an apocalyptic number.

223055471 is a deficient number, since it is larger than the sum of its proper divisors (1).

223055471 is an equidigital number, since it uses as much as digits as its factorization.

223055471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 223055471 is about 14935.0417140362. The cubic root of 223055471 is about 606.4629767752.

The spelling of 223055471 in words is "two hundred twenty-three million, fifty-five thousand, four hundred seventy-one".