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223422229 is a prime number
BaseRepresentation
bin11010101000100…
…10011100010101
3120120102000200101
431110102130111
5424144002404
634100414101
75352025522
oct1524223425
9516360611
10223422229
11105130478
12629a7331
1337398304
142195c149
15149342a4
hexd512715

223422229 has 2 divisors, whose sum is σ = 223422230. Its totient is φ = 223422228.

The previous prime is 223422223. The next prime is 223422259. The reversal of 223422229 is 922224322.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218359729 + 5062500 = 14777^2 + 2250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-223422229 is a prime.

It is a super-2 number, since 2×2234222292 = 99834984822656882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223422197 and 223422206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223422223) 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, 111711114 + 111711115.

It is an arithmetic number, because the mean of its divisors is an integer number (111711115).

Almost surely, 2223422229 is an apocalyptic number.

It is an amenable number.

223422229 is a deficient number, since it is larger than the sum of its proper divisors (1).

223422229 is an equidigital number, since it uses as much as digits as its factorization.

223422229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 28.

The square root of 223422229 is about 14947.3151100791. The cubic root of 223422229 is about 606.7951861451.

The spelling of 223422229 in words is "two hundred twenty-three million, four hundred twenty-two thousand, two hundred twenty-nine".