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5287 = 17311
BaseRepresentation
bin1010010100111
321020211
41102213
5132122
640251
721262
oct12247
97224
105287
113a77
123087
132539
141cd9
151877
hex14a7

5287 has 4 divisors (see below), whose sum is σ = 5616. Its totient is φ = 4960.

The previous prime is 5281. The next prime is 5297. The reversal of 5287 is 7825.

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

It is a cyclic number.

It is not a de Polignac number, because 5287 - 23 = 5279 is a prime.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5281) 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, 139 + ... + 172.

It is an arithmetic number, because the mean of its divisors is an integer number (1404).

5287 is a deficient number, since it is larger than the sum of its proper divisors (329).

5287 is a wasteful number, since it uses less digits than its factorization.

5287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328.

The product of its digits is 560, while the sum is 22.

The square root of 5287 is about 72.7117597091. The cubic root of 5287 is about 17.4208672006.

It can be divided in two parts, 528 and 7, that added together give a palindrome (535).

The spelling of 5287 in words is "five thousand, two hundred eighty-seven".

Divisors: 1 17 311 5287