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2730228 = 223227519
BaseRepresentation
bin1010011010100011110100
312010201011120
422122203310
51144331403
6134303540
732130564
oct12324364
95121146
102730228
1115a5296
12ab7bb0
13747927
14510da4
1538de53
hex29a8f4

2730228 has 12 divisors (see below), whose sum is σ = 6370560. Its totient is φ = 910072.

The previous prime is 2730197. The next prime is 2730229. The reversal of 2730228 is 8220372.

2730228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 2730198 and 2730207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2730229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113748 + ... + 113771.

It is an arithmetic number, because the mean of its divisors is an integer number (530880).

22730228 is an apocalyptic number.

It is an amenable number.

2730228 is an abundant number, since it is smaller than the sum of its proper divisors (3640332).

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

2730228 is a wasteful number, since it uses less digits than its factorization.

2730228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227526 (or 227524 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 2730228 is about 1652.3401586840. The cubic root of 2730228 is about 139.7653893744.

The spelling of 2730228 in words is "two million, seven hundred thirty thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 227519 455038 682557 910076 1365114 2730228