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2198228 = 225310369
BaseRepresentation
bin1000011000101011010100
311010200101212
420120223110
51030320403
6115040552
724453554
oct10305324
94120355
102198228
11127161a
128a0158
135bc736
14413164
152d64d8

2198228 has 12 divisors (see below), whose sum is σ = 3919860. Its totient is φ = 1078272.

The previous prime is 2198227. The next prime is 2198269. The reversal of 2198228 is 8228912.

It can be written as a sum of positive squares in 2 ways, for example, as 753424 + 1444804 = 868^2 + 1202^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2198194 and 2198203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198227) 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, 4973 + ... + 5396.

It is an arithmetic number, because the mean of its divisors is an integer number (326655).

22198228 is an apocalyptic number.

It is an amenable number.

2198228 is a deficient number, since it is larger than the sum of its proper divisors (1721632).

2198228 is a wasteful number, since it uses less digits than its factorization.

2198228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10426 (or 10424 counting only the distinct ones).

The product of its digits is 4608, while the sum is 32.

The square root of 2198228 is about 1482.6422360098. The cubic root of 2198228 is about 130.0242163960.

The spelling of 2198228 in words is "two million, one hundred ninety-eight thousand, two hundred twenty-eight".