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223422 = 23231619
BaseRepresentation
bin110110100010111110
3102100110220
4312202332
524122142
64442210
71620243
oct664276
9370426
10223422
11142951
12a9366
137a904
145b5ca
15462ec
hex368be

223422 has 16 divisors (see below), whose sum is σ = 466560. Its totient is φ = 71192.

The previous prime is 223403. The next prime is 223423. The reversal of 223422 is 224322.

223422 is nontrivially palindromic in base 5.

It is an Ulam number.

It is a plaindrome in base 16.

It is a nialpdrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223423) by changing a digit.

223422 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 672 + ... + 947.

It is an arithmetic number, because the mean of its divisors is an integer number (29160).

2223422 is an apocalyptic number.

223422 is an abundant number, since it is smaller than the sum of its proper divisors (243138).

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

223422 is a wasteful number, since it uses less digits than its factorization.

223422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647.

The product of its digits is 192, while the sum is 15.

The square root of 223422 is about 472.6753642829. The cubic root of 223422 is about 60.6794978830.

Adding to 223422 its reverse (224322), we get a palindrome (447744).

Subtracting 223422 from its reverse (224322), we obtain a square (900 = 302).

The spelling of 223422 in words is "two hundred twenty-three thousand, four hundred twenty-two", and thus it is an iban number.

Divisors: 1 2 3 6 23 46 69 138 1619 3238 4857 9714 37237 74474 111711 223422