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1083493 = 9771109
BaseRepresentation
bin100001000100001100101
32001001021101
410020201211
5234132433
635120101
712131605
oct4104145
92031241
101083493
11680054
12443031
132bc228
14202c05
1516607d
hex108865

1083493 has 4 divisors (see below), whose sum is σ = 1085580. Its totient is φ = 1081408.

The previous prime is 1083473. The next prime is 1083497. The reversal of 1083493 is 3943801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3943801 = 21118691.

It can be written as a sum of positive squares in 2 ways, for example, as 471969 + 611524 = 687^2 + 782^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1083493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1083497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423 + ... + 1531.

It is an arithmetic number, because the mean of its divisors is an integer number (271395).

21083493 is an apocalyptic number.

It is an amenable number.

1083493 is a deficient number, since it is larger than the sum of its proper divisors (2087).

1083493 is an equidigital number, since it uses as much as digits as its factorization.

1083493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2086.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1083493 is about 1040.9096982928. The cubic root of 1083493 is about 102.7090478779.

The spelling of 1083493 in words is "one million, eighty-three thousand, four hundred ninety-three".

Divisors: 1 977 1109 1083493