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222330220 = 22571588073
BaseRepresentation
bin11010100000001…
…11110101101100
3120111100112201121
431100013311230
5423404031340
634021150324
75336530030
oct1520076554
9514315647
10222330220
11104554a92
126255b3a4
13370a5258
14217561c0
15147ba94a
hexd407d6c

222330220 has 24 divisors (see below), whose sum is σ = 533592864. Its totient is φ = 76227456.

The previous prime is 222330203. The next prime is 222330223. The reversal of 222330220 is 22033222.

222330220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 222330194 and 222330203.

It is not an unprimeable number, because it can be changed into a prime (222330223) 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, 793897 + ... + 794176.

It is an arithmetic number, because the mean of its divisors is an integer number (22233036).

Almost surely, 2222330220 is an apocalyptic number.

222330220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222330220 is an abundant number, since it is smaller than the sum of its proper divisors (311262644).

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

222330220 is a wasteful number, since it uses less digits than its factorization.

222330220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588089 (or 1588087 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 222330220 is about 14910.7417655863. The cubic root of 222330220 is about 605.8049708791.

Adding to 222330220 its reverse (22033222), we get a palindrome (244363442).

The spelling of 222330220 in words is "two hundred twenty-two million, three hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1588073 3176146 6352292 7940365 11116511 15880730 22233022 31761460 44466044 55582555 111165110 222330220