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219089 = 1319887
BaseRepresentation
bin110101011111010001
3102010112102
4311133101
524002324
64410145
71601513
oct653721
9363472
10219089
1113a672
12a6955
1378950
1459bb3
1544dae
hex357d1

219089 has 8 divisors (see below), whose sum is σ = 248640. Its totient is φ = 191376.

The previous prime is 219083. The next prime is 219091. The reversal of 219089 is 980912.

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 219089 - 28 = 218833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (219083) 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 in 7 ways as a sum of consecutive naturals, for example, 197 + ... + 690.

It is an arithmetic number, because the mean of its divisors is an integer number (31080).

2219089 is an apocalyptic number.

It is an amenable number.

219089 is a deficient number, since it is larger than the sum of its proper divisors (29551).

219089 is a wasteful number, since it uses less digits than its factorization.

219089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 219089 is about 468.0694392929. The cubic root of 219089 is about 60.2846658056.

It can be divided in two parts, 2 and 19089, that added together give a palindrome (19091).

The spelling of 219089 in words is "two hundred nineteen thousand, eighty-nine".

Divisors: 1 13 19 247 887 11531 16853 219089