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2228349 = 3742783
BaseRepresentation
bin1000100000000001111101
311012012201110
420200001331
51032301344
6115432233
724640434
oct10400175
94165643
102228349
111292212
128b5679
13600366
1442011b
152e03b9
hex22007d

2228349 has 4 divisors (see below), whose sum is σ = 2971136. Its totient is φ = 1485564.

The previous prime is 2228341. The next prime is 2228351. The reversal of 2228349 is 9438222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2228349 - 23 = 2228341 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228341) 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, 371389 + ... + 371394.

It is an arithmetic number, because the mean of its divisors is an integer number (742784).

22228349 is an apocalyptic number.

It is an amenable number.

2228349 is a deficient number, since it is larger than the sum of its proper divisors (742787).

2228349 is an equidigital number, since it uses as much as digits as its factorization.

2228349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742786.

The product of its digits is 6912, while the sum is 30.

The square root of 2228349 is about 1492.7655542650. The cubic root of 2228349 is about 130.6154056123.

The spelling of 2228349 in words is "two million, two hundred twenty-eight thousand, three hundred forty-nine".

Divisors: 1 3 742783 2228349