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1312141 = 10712263
BaseRepresentation
bin101000000010110001101
32110122220211
411000112031
5313442031
644042421
714103325
oct5002615
92418824
101312141
11816916
12533411
1336c31c
14262285
151adbb1
hex14058d

1312141 has 4 divisors (see below), whose sum is σ = 1324512. Its totient is φ = 1299772.

The previous prime is 1312139. The next prime is 1312153. The reversal of 1312141 is 1412131.

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 a cyclic number.

It is not a de Polignac number, because 1312141 - 21 = 1312139 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 (1312841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6025 + ... + 6238.

It is an arithmetic number, because the mean of its divisors is an integer number (331128).

21312141 is an apocalyptic number.

It is an amenable number.

1312141 is a deficient number, since it is larger than the sum of its proper divisors (12371).

1312141 is a wasteful number, since it uses less digits than its factorization.

1312141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12370.

The product of its digits is 24, while the sum is 13.

The square root of 1312141 is about 1145.4872325783. The cubic root of 1312141 is about 109.4779950639.

Adding to 1312141 its reverse (1412131), we get a palindrome (2724272).

The spelling of 1312141 in words is "one million, three hundred twelve thousand, one hundred forty-one".

Divisors: 1 107 12263 1312141