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2223223 = 71173181
BaseRepresentation
bin1000011110110001110111
311011221200121
420132301313
51032120343
6115352411
724616462
oct10366167
94157617
102223223
111289382
128b2707
135cac22
1441c2d9
152ddaed
hex21ec77

2223223 has 8 divisors (see below), whose sum is σ = 2280096. Its totient is φ = 2167200.

The previous prime is 2223217. The next prime is 2223233. The reversal of 2223223 is 3223222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2223223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2223197 and 2223206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223233) 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 in 7 ways as a sum of consecutive naturals, for example, 12193 + ... + 12373.

It is an arithmetic number, because the mean of its divisors is an integer number (285012).

22223223 is an apocalyptic number.

2223223 is a deficient number, since it is larger than the sum of its proper divisors (56873).

2223223 is a wasteful number, since it uses less digits than its factorization.

2223223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425.

The product of its digits is 288, while the sum is 16.

The square root of 2223223 is about 1491.0476182872. The cubic root of 2223223 is about 130.5151746617.

Adding to 2223223 its reverse (3223222), we get a palindrome (5446445).

Subtracting 2223223 from its reverse (3223222), we obtain a palindrome (999999).

The spelling of 2223223 in words is "two million, two hundred twenty-three thousand, two hundred twenty-three".

Divisors: 1 71 173 181 12283 12851 31313 2223223