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74342 = 237171
BaseRepresentation
bin10010001001100110
310202222102
4102021212
54334332
61332102
7426512
oct221146
9122872
1074342
1150944
1237032
1327ab8
141d142
1517062
hex12266

74342 has 4 divisors (see below), whose sum is σ = 111516. Its totient is φ = 37170.

The previous prime is 74323. The next prime is 74353. The reversal of 74342 is 24347.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24347 = 97251.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 74342.

It is an unprimeable number.

74342 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 (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18584 + ... + 18587.

It is an arithmetic number, because the mean of its divisors is an integer number (27879).

274342 is an apocalyptic number.

74342 is a deficient number, since it is larger than the sum of its proper divisors (37174).

74342 is a wasteful number, since it uses less digits than its factorization.

74342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37173.

The product of its digits is 672, while the sum is 20.

The square root of 74342 is about 272.6572940524. The cubic root of 74342 is about 42.0479422306.

Adding to 74342 its reverse (24347), we get a palindrome (98689).

The spelling of 74342 in words is "seventy-four thousand, three hundred forty-two", and thus it is an iban number.

Divisors: 1 2 37171 74342