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2232220 = 225111611
BaseRepresentation
bin1000100000111110011100
311012102000211
420200332130
51032412340
6115502204
724654634
oct10407634
94172024
102232220
111295111
128b7964
13602053
144216c4
152e15ea
hex220f9c

2232220 has 12 divisors (see below), whose sum is σ = 4687704. Its totient is φ = 892880.

The previous prime is 2232203. The next prime is 2232221. The reversal of 2232220 is 222322.

2232220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×22322203 = 33368158487811144000, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 2232220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2232221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55786 + ... + 55825.

It is an arithmetic number, because the mean of its divisors is an integer number (390642).

22232220 is an apocalyptic number.

2232220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2232220 is an abundant number, since it is smaller than the sum of its proper divisors (2455484).

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

2232220 is a wasteful number, since it uses less digits than its factorization.

2232220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111620 (or 111618 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 2232220 is about 1494.0615783829. The cubic root of 2232220 is about 130.6909951693.

Adding to 2232220 its reverse (222322), we get a palindrome (2454542).

The spelling of 2232220 in words is "two million, two hundred thirty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 111611 223222 446444 558055 1116110 2232220