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2222226 = 232123457
BaseRepresentation
bin1000011110100010010010
311011220022200
420132202102
51032102401
6115344030
724613536
oct10364222
94156280
102222226
111288656
128b2016
135ca636
1441bbc6
152dd686
hex21e892

2222226 has 12 divisors (see below), whose sum is σ = 4814862. Its totient is φ = 740736.

The previous prime is 2222219. The next prime is 2222239. The reversal of 2222226 is 6222222.

It can be written as a sum of positive squares in only one way, i.e., 1212201 + 1010025 = 1101^2 + 1005^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 123457 = 2222226 / (2 + 2 + 2 + 2 + 2 + 2 + 6).

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 2222199 and 2222208.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61711 + ... + 61746.

22222226 is an apocalyptic number.

2222226 is an abundant number, since it is smaller than the sum of its proper divisors (2592636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2222226 is a wasteful number, since it uses less digits than its factorization.

2222226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123465 (or 123462 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 2222226 is about 1490.7132521045. The cubic root of 2222226 is about 130.4956619864.

Adding to 2222226 its reverse (6222222), we get a palindrome (8444448).

The spelling of 2222226 in words is "two million, two hundred twenty-two thousand, two hundred twenty-six".

Divisors: 1 2 3 6 9 18 123457 246914 370371 740742 1111113 2222226