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174242 = 287121
BaseRepresentation
bin101010100010100010
322212000102
4222202202
521033432
63422402
71323665
oct524242
9285012
10174242
11109a02
1284a02
1361403
14476dc
1536962
hex2a8a2

174242 has 4 divisors (see below), whose sum is σ = 261366. Its totient is φ = 87120.

The previous prime is 174241. The next prime is 174257. The reversal of 174242 is 242471.

174242 is nontrivially palindromic in base 16.

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., 121801 + 52441 = 349^2 + 229^2 .

It is not an unprimeable number, because it can be changed into a prime (174241) by changing a digit.

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, 43559 + ... + 43562.

2174242 is an apocalyptic number.

174242 is a deficient number, since it is larger than the sum of its proper divisors (87124).

174242 is an equidigital number, since it uses as much as digits as its factorization.

174242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87123.

The product of its digits is 448, while the sum is 20.

The square root of 174242 is about 417.4230468002. The cubic root of 174242 is about 55.8535715351.

The spelling of 174242 in words is "one hundred seventy-four thousand, two hundred forty-two", and thus it is an iban number.

Divisors: 1 2 87121 174242