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1080745 = 5216149
BaseRepresentation
bin100000111110110101001
32000220111121
410013312221
5234040440
635055241
712120601
oct4076651
92026447
101080745
11678a86
12441521
132babc3
14201c01
1516534a
hex107da9

1080745 has 4 divisors (see below), whose sum is σ = 1296900. Its totient is φ = 864592.

The previous prime is 1080713. The next prime is 1080749. The reversal of 1080745 is 5470801.

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 249001 + 831744 = 499^2 + 912^2 .

It is a cyclic number.

It is not a de Polignac number, because 1080745 - 25 = 1080713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1080749) 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, 108070 + ... + 108079.

It is an arithmetic number, because the mean of its divisors is an integer number (324225).

21080745 is an apocalyptic number.

It is an amenable number.

1080745 is a deficient number, since it is larger than the sum of its proper divisors (216155).

1080745 is an equidigital number, since it uses as much as digits as its factorization.

1080745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216154.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 1080745 is about 1039.5888610407. The cubic root of 1080745 is about 102.6221427129.

The spelling of 1080745 in words is "one million, eighty thousand, seven hundred forty-five".

Divisors: 1 5 216149 1080745