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222139 = 1773179
BaseRepresentation
bin110110001110111011
3102021201101
4312032323
524102024
64432231
71613431
oct661673
9367641
10222139
11141995
12a8677
137a158
145ad51
1545c44
hex363bb

222139 has 8 divisors (see below), whose sum is σ = 239760. Its totient is φ = 205056.

The previous prime is 222137. The next prime is 222149. The reversal of 222139 is 931222.

It is a happy number.

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 222139 - 21 = 222137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1152 + ... + 1330.

It is an arithmetic number, because the mean of its divisors is an integer number (29970).

2222139 is an apocalyptic number.

222139 is a deficient number, since it is larger than the sum of its proper divisors (17621).

222139 is a wasteful number, since it uses less digits than its factorization.

222139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269.

The product of its digits is 216, while the sum is 19.

The square root of 222139 is about 471.3162420286. The cubic root of 222139 is about 60.5631242430.

It can be divided in two parts, 22213 and 9, that added together give a palindrome (22222).

The spelling of 222139 in words is "two hundred twenty-two thousand, one hundred thirty-nine".

Divisors: 1 17 73 179 1241 3043 13067 222139