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11042 = 25521
BaseRepresentation
bin10101100100010
3120010222
42230202
5323132
6123042
744123
oct25442
916128
1011042
118329
126482
135045
14404a
153412
hex2b22

11042 has 4 divisors (see below), whose sum is σ = 16566. Its totient is φ = 5520.

The previous prime is 11027. The next prime is 11047. The reversal of 11042 is 24011.

Adding to 11042 its reverse (24011), we get a palindrome (35053).

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24011 = 131847.

It can be written as a sum of positive squares in only one way, i.e., 10201 + 841 = 101^2 + 29^2 .

It is not an unprimeable number, because it can be changed into a prime (11047) by changing a digit.

11042 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2759 + ... + 2762.

211042 is an apocalyptic number.

11042 is a deficient number, since it is larger than the sum of its proper divisors (5524).

11042 is an equidigital number, since it uses as much as digits as its factorization.

11042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5523.

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

The square root of 11042 is about 105.0809211989. The cubic root of 11042 is about 22.2680701583.

The spelling of 11042 in words is "eleven thousand, forty-two", and thus it is an iban number.

Divisors: 1 2 5521 11042