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223044213 = 3710621153
BaseRepresentation
bin11010100101101…
…10001001110101
3120112200211010210
431102312021311
5424044403323
634044340033
75345562450
oct1522661165
9515624123
10223044213
111049a2467
1262844619
1337295232
14218a0497
15148ac293
hexd4b6275

223044213 has 8 divisors (see below), whose sum is σ = 339876928. Its totient is φ = 127453824.

The previous prime is 223044197. The next prime is 223044221. The reversal of 223044213 is 312440322.

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

It is not a de Polignac number, because 223044213 - 24 = 223044197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 10621153 = 223044213 / (2 + 2 + 3 + 0 + 4 + 4 + 2 + 1 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223044213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223044253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5310556 + ... + 5310597.

It is an arithmetic number, because the mean of its divisors is an integer number (42484616).

Almost surely, 2223044213 is an apocalyptic number.

It is an amenable number.

223044213 is a deficient number, since it is larger than the sum of its proper divisors (116832715).

223044213 is a wasteful number, since it uses less digits than its factorization.

223044213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10621163.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 223044213 is about 14934.6648104335. The cubic root of 223044213 is about 606.4527735209.

Adding to 223044213 its reverse (312440322), we get a palindrome (535484535).

The spelling of 223044213 in words is "two hundred twenty-three million, forty-four thousand, two hundred thirteen".

Divisors: 1 3 7 21 10621153 31863459 74348071 223044213