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223042 = 2111521
BaseRepresentation
bin110110011101000010
3102022221211
4312131002
524114132
64440334
71616161
oct663502
9368854
10223042
11142636
12a90aa
137a6a1
145b3d8
1546147
hex36742

223042 has 4 divisors (see below), whose sum is σ = 334566. Its totient is φ = 111520.

The previous prime is 223037. The next prime is 223049. The reversal of 223042 is 240322.

Adding to 223042 its reverse (240322), we get a palindrome (463364).

223042 is nontrivially palindromic in base 7.

223042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 194481 + 28561 = 441^2 + 169^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

223042 is an undulating number in base 7.

It is not an unprimeable number, because it can be changed into a prime (223049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55759 + ... + 55762.

2223042 is an apocalyptic number.

223042 is a deficient number, since it is larger than the sum of its proper divisors (111524).

223042 is a wasteful number, since it uses less digits than its factorization.

223042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111523.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 223042 is about 472.2732260038. The cubic root of 223042 is about 60.6450767813.

The spelling of 223042 in words is "two hundred twenty-three thousand, forty-two", and thus it is an iban number.

Divisors: 1 2 111521 223042