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220222330 = 25157140269
BaseRepresentation
bin11010010000001…
…01001101111010
3120100101110020121
431020011031322
5422334103310
633504043454
75312600416
oct1510051572
9510343217
10220222330
11103345329
126190358a
1336817993
1421367d46
15145010da
hexd20537a

220222330 has 16 divisors (see below), whose sum is σ = 398927880. Its totient is φ = 87527232.

The previous prime is 220222283. The next prime is 220222337. The reversal of 220222330 is 33222022.

It can be written as a sum of positive squares in 4 ways, for example, as 93141801 + 127080529 = 9651^2 + 11273^2 .

It is not an unprimeable number, because it can be changed into a prime (220222337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68565 + ... + 71704.

Almost surely, 2220222330 is an apocalyptic number.

220222330 is a deficient number, since it is larger than the sum of its proper divisors (178705550).

220222330 is a wasteful number, since it uses less digits than its factorization.

220222330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140433.

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

The square root of 220222330 is about 14839.8898243889. The cubic root of 220222330 is about 603.8843634159.

Adding to 220222330 its reverse (33222022), we get a palindrome (253444352).

The spelling of 220222330 in words is "two hundred twenty million, two hundred twenty-two thousand, three hundred thirty".

Divisors: 1 2 5 10 157 314 785 1570 140269 280538 701345 1402690 22022233 44044466 110111165 220222330