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2189196 = 223260811
BaseRepresentation
bin1000010110011110001100
311010020000100
420112132030
51030023241
6114531100
724415332
oct10263614
94106010
102189196
111265859
12896a90
135b85a9
1440db52
152d39b6
hex21678c

2189196 has 18 divisors (see below), whose sum is σ = 5533892. Its totient is φ = 729720.

The previous prime is 2189183. The next prime is 2189207. The reversal of 2189196 is 6919812.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 60811 = 2189196 / (2 + 1 + 8 + 9 + 1 + 9 + 6).

It is a d-powerful number, because it can be written as 221 + 1 + 85 + 9 + 1 + 95 + 63 .

It is a self number, because there is not a number n which added to its sum of digits gives 2189196.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30370 + ... + 30441.

22189196 is an apocalyptic number.

It is an amenable number.

2189196 is an abundant number, since it is smaller than the sum of its proper divisors (3344696).

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

2189196 is a wasteful number, since it uses less digits than its factorization.

2189196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60821 (or 60816 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 2189196 is about 1479.5931873322. The cubic root of 2189196 is about 129.8458923369.

The spelling of 2189196 in words is "two million, one hundred eighty-nine thousand, one hundred ninety-six".

Divisors: 1 2 3 4 6 9 12 18 36 60811 121622 182433 243244 364866 547299 729732 1094598 2189196