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16287 = 36189
BaseRepresentation
bin11111110011111
3211100020
43332133
51010122
6203223
765325
oct37637
924306
1016287
1111267
129513
13754b
145d15
154c5c
hex3f9f

16287 has 8 divisors (see below), whose sum is σ = 22320. Its totient is φ = 10560.

The previous prime is 16273. The next prime is 16301. The reversal of 16287 is 78261.

It is an interprime number because it is at equal distance from previous prime (16273) and next prime (16301).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16287 - 26 = 16223 is a prime.

It is an Ulam number.

16287 is a lucky number.

It is a plaindrome in base 11.

It is a zygodrome in base 2.

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 16287.

It is not an unprimeable number, because it can be changed into a prime (16217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139 + ... + 227.

It is an arithmetic number, because the mean of its divisors is an integer number (2790).

216287 is an apocalyptic number.

16287 is a deficient number, since it is larger than the sum of its proper divisors (6033).

16287 is an equidigital number, since it uses as much as digits as its factorization.

16287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153.

The product of its digits is 672, while the sum is 24.

The square root of 16287 is about 127.6205312636. The cubic root of 16287 is about 25.3481945736.

It can be divided in two parts, 16 and 287, that added together give a palindrome (303).

The spelling of 16287 in words is "sixteen thousand, two hundred eighty-seven".

Divisors: 1 3 61 89 183 267 5429 16287