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219055 = 5193227
BaseRepresentation
bin110101011110101111
3102010111011
4311132233
524002210
64410051
71601434
oct653657
9363434
10219055
1113a641
12a6927
1378925
1459b8b
1544d8a
hex357af

219055 has 8 divisors (see below), whose sum is σ = 265392. Its totient is φ = 173568.

The previous prime is 219053. The next prime is 219059. The reversal of 219055 is 550912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 219055 - 21 = 219053 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 852 + ... + 1078.

It is an arithmetic number, because the mean of its divisors is an integer number (33174).

2219055 is an apocalyptic number.

219055 is a deficient number, since it is larger than the sum of its proper divisors (46337).

219055 is a wasteful number, since it uses less digits than its factorization.

219055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 219055 is about 468.0331184863. The cubic root of 219055 is about 60.2815471572.

Adding to 219055 its reverse (550912), we get a palindrome (769967).

The spelling of 219055 in words is "two hundred nineteen thousand, fifty-five".

Divisors: 1 5 193 227 965 1135 43811 219055