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2220330 = 235797109
BaseRepresentation
bin1000011110000100101010
311011210201110
420132010222
51032022310
6115331150
724605160
oct10360452
94153643
102220330
111287192
128b0ab6
135c9808
1441b230
152dcd20
hex21e12a

2220330 has 64 divisors (see below), whose sum is σ = 6209280. Its totient is φ = 497664.

The previous prime is 2220311. The next prime is 2220331. The reversal of 2220330 is 330222.

It is not an unprimeable number, because it can be changed into a prime (2220331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20316 + ... + 20424.

It is an arithmetic number, because the mean of its divisors is an integer number (97020).

22220330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2220330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3104640).

2220330 is an abundant number, since it is smaller than the sum of its proper divisors (3988950).

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

2220330 is a wasteful number, since it uses less digits than its factorization.

2220330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 2220330 is about 1490.0771792092. The cubic root of 2220330 is about 130.4585385233.

Adding to 2220330 its reverse (330222), we get a palindrome (2550552).

The spelling of 2220330 in words is "two million, two hundred twenty thousand, three hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 97 105 109 194 210 218 291 327 485 545 582 654 679 763 970 1090 1358 1455 1526 1635 2037 2289 2910 3270 3395 3815 4074 4578 6790 7630 10185 10573 11445 20370 21146 22890 31719 52865 63438 74011 105730 148022 158595 222033 317190 370055 444066 740110 1110165 2220330