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2213284 = 222572153
BaseRepresentation
bin1000011100010110100100
311011110001111
420130112210
51031311114
6115234404
724545503
oct10342644
94143044
102213284
111281967
128a8a04
135c6548
1441883a
152dabc4
hex21c5a4

2213284 has 12 divisors (see below), whose sum is σ = 3890124. Its totient is φ = 1101824.

The previous prime is 2213279. The next prime is 2213293. The reversal of 2213284 is 4823122.

It can be written as a sum of positive squares in 2 ways, for example, as 1272384 + 940900 = 1128^2 + 970^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49 + ... + 2104.

It is an arithmetic number, because the mean of its divisors is an integer number (324177).

22213284 is an apocalyptic number.

It is an amenable number.

2213284 is a deficient number, since it is larger than the sum of its proper divisors (1676840).

2213284 is a wasteful number, since it uses less digits than its factorization.

2213284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414 (or 2412 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 2213284 is about 1487.7109934392. The cubic root of 2213284 is about 130.3203931542.

The spelling of 2213284 in words is "two million, two hundred thirteen thousand, two hundred eighty-four".

Divisors: 1 2 4 257 514 1028 2153 4306 8612 553321 1106642 2213284