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1312055 = 5262411
BaseRepresentation
bin101000000010100110111
32110122210122
411000110313
5313441210
644042155
714103143
oct5002467
92418718
101312055
11816848
1253335b
1336c284
14262223
151adb55
hex140537

1312055 has 4 divisors (see below), whose sum is σ = 1574472. Its totient is φ = 1049640.

The previous prime is 1312027. The next prime is 1312079. The reversal of 1312055 is 5502131.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1312055 - 26 = 1311991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131201 + ... + 131210.

It is an arithmetic number, because the mean of its divisors is an integer number (393618).

21312055 is an apocalyptic number.

1312055 is a deficient number, since it is larger than the sum of its proper divisors (262417).

1312055 is an equidigital number, since it uses as much as digits as its factorization.

1312055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262416.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 1312055 is about 1145.4496933519. The cubic root of 1312055 is about 109.4756032190.

Adding to 1312055 its reverse (5502131), we get a palindrome (6814186).

The spelling of 1312055 in words is "one million, three hundred twelve thousand, fifty-five".

Divisors: 1 5 262411 1312055