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1042 = 2521
BaseRepresentation
bin10000010010
31102121
4100102
513132
64454
73016
oct2022
91377
101042
11868
1272a
13622
14546
15497
hex412

1042 has 4 divisors (see below), whose sum is σ = 1566. Its totient is φ = 520.

The previous prime is 1039. The next prime is 1049. The reversal of 1042 is 2401.

Adding to 1042 its reverse (2401), we get a palindrome (3443).

1042 is nontrivially palindromic in base 11.

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., 961 + 81 = 31^2 + 9^2 .

1042 is an undulating number in base 11.

It is a plaindrome in base 9.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (1049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259 + ... + 262.

1042 is a deficient number, since it is larger than the sum of its proper divisors (524).

1042 is an equidigital number, since it uses as much as digits as its factorization.

1042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 1042 is about 32.2800247831. The cubic root of 1042 is about 10.1380844910.

The spelling of 1042 in words is "one thousand, forty-two", and thus it is an iban number.

Divisors: 1 2 521 1042