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222230711 = 474728313
BaseRepresentation
bin11010011111011…
…11100010110111
3120111011111020002
431033233202313
5423342340321
634015101515
75335633643
oct1517574267
9514144202
10222230711
1110449724a
126251189b
133706bb81
142172bc23
151479b20b
hexd3ef8b7

222230711 has 4 divisors (see below), whose sum is σ = 226959072. Its totient is φ = 217502352.

The previous prime is 222230641. The next prime is 222230717. The reversal of 222230711 is 117032222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 117032222 = 258516111.

It is a cyclic number.

It is not a de Polignac number, because 222230711 - 218 = 221968567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222230717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2364110 + ... + 2364203.

It is an arithmetic number, because the mean of its divisors is an integer number (56739768).

Almost surely, 2222230711 is an apocalyptic number.

222230711 is a deficient number, since it is larger than the sum of its proper divisors (4728361).

222230711 is an equidigital number, since it uses as much as digits as its factorization.

222230711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4728360.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 222230711 is about 14907.4045695419. The cubic root of 222230711 is about 605.7145767456.

Adding to 222230711 its reverse (117032222), we get a palindrome (339262933).

The spelling of 222230711 in words is "two hundred twenty-two million, two hundred thirty thousand, seven hundred eleven".

Divisors: 1 47 4728313 222230711