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2284420 = 225114221
BaseRepresentation
bin1000101101101110000100
311022001122011
420231232010
51041100140
6120544004
725263055
oct10555604
94261564
102284420
111320356
12922004
1361ca38
1443672c
15301cea
hex22db84

2284420 has 12 divisors (see below), whose sum is σ = 4797324. Its totient is φ = 913760.

The previous prime is 2284391. The next prime is 2284423. The reversal of 2284420 is 244822.

It can be written as a sum of positive squares in 2 ways, for example, as 1012036 + 1272384 = 1006^2 + 1128^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2284391 and 2284400.

It is not an unprimeable number, because it can be changed into a prime (2284423) 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, 57091 + ... + 57130.

It is an arithmetic number, because the mean of its divisors is an integer number (399777).

22284420 is an apocalyptic number.

2284420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2284420 is an abundant number, since it is smaller than the sum of its proper divisors (2512904).

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

2284420 is a wasteful number, since it uses less digits than its factorization.

2284420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114230 (or 114228 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 2284420 is about 1511.4297866590. The cubic root of 2284420 is about 131.7018830829.

It can be divided in two parts, 2284 and 420, that added together give a square (2704 = 522).

The spelling of 2284420 in words is "two million, two hundred eighty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 114221 228442 456884 571105 1142210 2284420