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1075705 = 5215141
BaseRepresentation
bin100000110100111111001
32000122120221
410012213321
5233410310
635020041
712100111
oct4064771
92018527
101075705
11675214
1243a621
132b8817
14200041
15163ada
hex1069f9

1075705 has 4 divisors (see below), whose sum is σ = 1290852. Its totient is φ = 860560.

The previous prime is 1075703. The next prime is 1075727. The reversal of 1075705 is 5075701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5075701 = 24121061.

It can be written as a sum of positive squares in 2 ways, for example, as 660969 + 414736 = 813^2 + 644^2 .

It is not a de Polignac number, because 1075705 - 21 = 1075703 is a prime.

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 1075705.

It is not an unprimeable number, because it can be changed into a prime (1075703) 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, 107566 + ... + 107575.

It is an arithmetic number, because the mean of its divisors is an integer number (322713).

21075705 is an apocalyptic number.

It is an amenable number.

1075705 is a deficient number, since it is larger than the sum of its proper divisors (215147).

1075705 is an equidigital number, since it uses as much as digits as its factorization.

1075705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215146.

The product of its (nonzero) digits is 1225, while the sum is 25.

The square root of 1075705 is about 1037.1619931332. The cubic root of 1075705 is about 102.4623696885.

The spelling of 1075705 in words is "one million, seventy-five thousand, seven hundred five".

Divisors: 1 5 215141 1075705