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127287 = 3214143
BaseRepresentation
bin11111000100110111
320110121100
4133010313
513033122
62421143
71040046
oct370467
9213540
10127287
11876a6
12617b3
1345c24
143455d
1527aac
hex1f137

127287 has 6 divisors (see below), whose sum is σ = 183872. Its totient is φ = 84852.

The previous prime is 127277. The next prime is 127289. The reversal of 127287 is 782721.

It is not a de Polignac number, because 127287 - 24 = 127271 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14 and base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 127287.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 127287.

It is not an unprimeable number, because it can be changed into a prime (127289) 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 5 ways as a sum of consecutive naturals, for example, 7063 + ... + 7080.

2127287 is an apocalyptic number.

127287 is a deficient number, since it is larger than the sum of its proper divisors (56585).

127287 is a wasteful number, since it uses less digits than its factorization.

127287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14149 (or 14146 counting only the distinct ones).

The product of its digits is 1568, while the sum is 27.

The square root of 127287 is about 356.7730370978. The cubic root of 127287 is about 50.3030923217.

Subtracting from 127287 its sum of digits (27), we obtain a triangular number (127260 = T504).

It can be divided in two parts, 127 and 287, that added together give a palindrome (414).

The spelling of 127287 in words is "one hundred twenty-seven thousand, two hundred eighty-seven".

Divisors: 1 3 9 14143 42429 127287