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222160 = 2452777
BaseRepresentation
bin110110001111010000
3102021202011
4312033100
524102120
64432304
71613461
oct661720
9367664
10222160
11141a04
12a8694
137a173
145ad68
1545c5a
hex363d0

222160 has 20 divisors (see below), whose sum is σ = 516708. Its totient is φ = 88832.

The previous prime is 222151. The next prime is 222161. The reversal of 222160 is 61222.

It is a happy number.

222160 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 55696 + 166464 = 236^2 + 408^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 222160.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222161) 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, 1309 + ... + 1468.

2222160 is an apocalyptic number.

222160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222160 is an abundant number, since it is smaller than the sum of its proper divisors (294548).

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

222160 is a wasteful number, since it uses less digits than its factorization.

222160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790 (or 2784 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 222160 is about 471.3385195377. The cubic root of 222160 is about 60.5650326360.

Adding to 222160 its reverse (61222), we get a palindrome (283382).

The spelling of 222160 in words is "two hundred twenty-two thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 2777 5554 11108 13885 22216 27770 44432 55540 111080 222160