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220089 = 373363
BaseRepresentation
bin110101101110111001
3102011220110
4311232321
524020324
64414533
71604442
oct655671
9364813
10220089
111403a1
12a7449
137923c
145a2c9
1545329
hex35bb9

220089 has 4 divisors (see below), whose sum is σ = 293456. Its totient is φ = 146724.

The previous prime is 220063. The next prime is 220123. The reversal of 220089 is 980022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 220089 - 25 = 220057 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220009) 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, 36679 + ... + 36684.

It is an arithmetic number, because the mean of its divisors is an integer number (73364).

2220089 is an apocalyptic number.

It is an amenable number.

220089 is a deficient number, since it is larger than the sum of its proper divisors (73367).

220089 is an equidigital number, since it uses as much as digits as its factorization.

220089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73366.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 220089 is about 469.1364407078. The cubic root of 220089 is about 60.3762468183.

The spelling of 220089 in words is "two hundred twenty thousand, eighty-nine".

Divisors: 1 3 73363 220089