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1313841 = 3437947
BaseRepresentation
bin101000000110000110001
32110202020210
411000300301
5314020331
644054333
714111304
oct5006061
92422223
101313841
11818121
125343a9
13370029
14262b3b
151ae446
hex140c31

1313841 has 4 divisors (see below), whose sum is σ = 1751792. Its totient is φ = 875892.

The previous prime is 1313839. The next prime is 1313843. The reversal of 1313841 is 1483131.

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.

It is an interprime number because it is at equal distance from previous prime (1313839) and next prime (1313843).

It is not a de Polignac number, because 1313841 - 21 = 1313839 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313843) 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, 218971 + ... + 218976.

It is an arithmetic number, because the mean of its divisors is an integer number (437948).

21313841 is an apocalyptic number.

It is an amenable number.

1313841 is a deficient number, since it is larger than the sum of its proper divisors (437951).

1313841 is an equidigital number, since it uses as much as digits as its factorization.

1313841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437950.

The product of its digits is 288, while the sum is 21.

The square root of 1313841 is about 1146.2290347047. The cubic root of 1313841 is about 109.5252542823.

Adding to 1313841 its reverse (1483131), we get a palindrome (2796972).

The spelling of 1313841 in words is "one million, three hundred thirteen thousand, eight hundred forty-one".

Divisors: 1 3 437947 1313841