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3287 = 19173
BaseRepresentation
bin110011010111
311111202
4303113
5101122
623115
712404
oct6327
94452
103287
112519
121a9b
13165b
1412ab
15e92
hexcd7

3287 has 4 divisors (see below), whose sum is σ = 3480. Its totient is φ = 3096.

The previous prime is 3271. The next prime is 3299. The reversal of 3287 is 7823.

It can be divided in two parts, 3 and 287, that multiplied together give a triangular number (861 = T41).

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 3287 - 24 = 3271 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a nialpdrome in base 15.

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 3287.

It is not an unprimeable number, because it can be changed into a prime (3217) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68 + ... + 105.

It is an arithmetic number, because the mean of its divisors is an integer number (870).

23287 is an apocalyptic number.

3287 is a deficient number, since it is larger than the sum of its proper divisors (193).

3287 is a wasteful number, since it uses less digits than its factorization.

3287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192.

The product of its digits is 336, while the sum is 20.

The square root of 3287 is about 57.3323643329. The cubic root of 3287 is about 14.8684798296.

The spelling of 3287 in words is "three thousand, two hundred eighty-seven".

Divisors: 1 19 173 3287