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1042069 = 7148867
BaseRepresentation
bin11111110011010010101
31221221110011
43332122111
5231321234
634200221
711600050
oct3763225
91857404
101042069
11651a16
12423071
132a6412
141d1a97
15158b64
hexfe695

1042069 has 4 divisors (see below), whose sum is σ = 1190944. Its totient is φ = 893196.

The previous prime is 1042043. The next prime is 1042081. The reversal of 1042069 is 9602401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9602401 = 11384977.

It is a cyclic number.

It is not a de Polignac number, because 1042069 - 211 = 1040021 is a prime.

It is a super-2 number, since 2×10420692 = 2171815601522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74427 + ... + 74440.

It is an arithmetic number, because the mean of its divisors is an integer number (297736).

21042069 is an apocalyptic number.

It is an amenable number.

1042069 is a deficient number, since it is larger than the sum of its proper divisors (148875).

1042069 is an equidigital number, since it uses as much as digits as its factorization.

1042069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148874.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1042069 is about 1020.8178094058. The cubic root of 1042069 is about 101.3830826335.

The spelling of 1042069 in words is "one million, forty-two thousand, sixty-nine".

Divisors: 1 7 148867 1042069