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2222222223 = 31363538969
BaseRepresentation
bin1000010001110100…
…0110101110001111
312201212111120210210
42010131012232033
514022342102343
61004301533503
7106032401664
oct20435065617
95655446723
102222222223
11a404284a1
12520274293
132955123c0
141711c3a6b
15d015b333
hex84746b8f

2222222223 has 16 divisors (see below), whose sum is σ = 3191741280. Its totient is φ = 1367153664.

The previous prime is 2222222137. The next prime is 2222222243. The reversal of 2222222223 is 3222222222.

2222222223 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2222222223 - 218 = 2221960079 is a prime.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 2222222223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222222243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243283 + ... + 252251.

It is an arithmetic number, because the mean of its divisors is an integer number (199483830).

Almost surely, 22222222223 is an apocalyptic number.

2222222223 is a deficient number, since it is larger than the sum of its proper divisors (969519057).

2222222223 is a wasteful number, since it uses less digits than its factorization.

2222222223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15338.

The product of its digits is 1536, while the sum is 21.

The square root of 2222222223 is about 47140.4520873527. The cubic root of 2222222223 is about 1304.9558805419.

Adding to 2222222223 its reverse (3222222222), we get a palindrome (5444444445).

Subtracting 2222222223 from its reverse (3222222222), we obtain a palindrome (999999999).

It can be divided in two parts, 222222222 and 3, that multiplied together give a palindrome (666666666).

The spelling of 2222222223 in words is "two billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-three".

Divisors: 1 3 13 39 6353 8969 19059 26907 82589 116597 247767 349791 56980057 170940171 740740741 2222222223