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2189219 is a prime number
BaseRepresentation
bin1000010110011110100011
311010020001012
420112132203
51030023334
6114531135
724415364
oct10263643
94106035
102189219
11126587a
12896aab
135b85c6
1440db6b
152d39ce
hex2167a3

2189219 has 2 divisors, whose sum is σ = 2189220. Its totient is φ = 2189218.

The previous prime is 2189207. The next prime is 2189221. The reversal of 2189219 is 9129812.

It is a happy number.

2189219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2189219 - 216 = 2123683 is a prime.

It is a super-2 number, since 2×21892192 = 9585359659922, which contains 22 as substring.

Together with 2189221, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2189249) 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 as a sum of consecutive naturals, namely, 1094609 + 1094610.

It is an arithmetic number, because the mean of its divisors is an integer number (1094610).

22189219 is an apocalyptic number.

2189219 is a deficient number, since it is larger than the sum of its proper divisors (1).

2189219 is an equidigital number, since it uses as much as digits as its factorization.

2189219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 32.

The square root of 2189219 is about 1479.6009597185. The cubic root of 2189219 is about 129.8463470617.

The spelling of 2189219 in words is "two million, one hundred eighty-nine thousand, two hundred nineteen".