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202042 = 2101021
BaseRepresentation
bin110001010100111010
3101021011001
4301110322
522431132
64155214
71501021
oct612472
9337131
10202042
11128885
1298b0a
1370c69
14538b8
153ece7
hex3153a

202042 has 4 divisors (see below), whose sum is σ = 303066. Its totient is φ = 101020.

The previous prime is 202031. The next prime is 202049. The reversal of 202042 is 240202.

Adding to 202042 its reverse (240202), we get a palindrome (442244).

It is a happy number.

202042 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., 201601 + 441 = 449^2 + 21^2 .

It is not an unprimeable number, because it can be changed into a prime (202049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50509 + ... + 50512.

2202042 is an apocalyptic number.

202042 is a deficient number, since it is larger than the sum of its proper divisors (101024).

202042 is a wasteful number, since it uses less digits than its factorization.

202042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101023.

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 202042 is about 449.4908230431. The cubic root of 202042 is about 58.6787093620.

The spelling of 202042 in words is "two hundred two thousand, forty-two", and thus it is an iban number.

Divisors: 1 2 101021 202042