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1042049 = 1761297
BaseRepresentation
bin11111110011010000001
31221221102102
43332122001
5231321144
634200145
711600021
oct3763201
91857372
101042049
116519a8
12423055
132a63c8
141d1a81
15158b4e
hexfe681

1042049 has 4 divisors (see below), whose sum is σ = 1103364. Its totient is φ = 980736.

The previous prime is 1042043. The next prime is 1042081. The reversal of 1042049 is 9402401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 552049 + 490000 = 743^2 + 700^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042049 - 28 = 1041793 is a prime.

It is a super-2 number, since 2×10420492 = 2171732236802, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1042049.

It is not an unprimeable number, because it can be changed into a prime (1042043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30632 + ... + 30665.

It is an arithmetic number, because the mean of its divisors is an integer number (275841).

21042049 is an apocalyptic number.

It is an amenable number.

1042049 is a deficient number, since it is larger than the sum of its proper divisors (61315).

1042049 is an equidigital number, since it uses as much as digits as its factorization.

1042049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61314.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1042049 is about 1020.8080132914. The cubic root of 1042049 is about 101.3824340282.

The spelling of 1042049 in words is "one million, forty-two thousand, forty-nine".

Divisors: 1 17 61297 1042049