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222213230 = 25103443487
BaseRepresentation
bin11010011111010…
…11010001101110
3120111010121020122
431033223101232
5423341310410
634014444542
75335531661
oct1517532156
9514117218
10222213230
111044850a8
1262503752
1337063c25
14217256d8
1514795e55
hexd3eb46e

222213230 has 32 divisors (see below), whose sum is σ = 405609984. Its totient is φ = 87643296.

The previous prime is 222213223. The next prime is 222213253. The reversal of 222213230 is 32312222.

It is a junction number, because it is equal to n+sod(n) for n = 222213199 and 222213208.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 456047 + ... + 456533.

It is an arithmetic number, because the mean of its divisors is an integer number (12675312).

Almost surely, 2222213230 is an apocalyptic number.

222213230 is a deficient number, since it is larger than the sum of its proper divisors (183396754).

222213230 is a wasteful number, since it uses less digits than its factorization.

222213230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 222213230 is about 14906.8182386450. The cubic root of 222213230 is about 605.6986941911.

Adding to 222213230 its reverse (32312222), we get a palindrome (254525452).

The spelling of 222213230 in words is "two hundred twenty-two million, two hundred thirteen thousand, two hundred thirty".

Divisors: 1 2 5 10 103 206 443 487 515 886 974 1030 2215 2435 4430 4870 45629 50161 91258 100322 215741 228145 250805 431482 456290 501610 1078705 2157410 22221323 44442646 111106615 222213230