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2387 = 71131
BaseRepresentation
bin100101010011
310021102
4211103
534022
615015
76650
oct4523
93242
102387
111880
12146b
131118
14c27
15a92
hex953

2387 has 8 divisors (see below), whose sum is σ = 3072. Its totient is φ = 1800.

The previous prime is 2383. The next prime is 2389. The reversal of 2387 is 7832.

2387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2387 - 22 = 2383 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a plaindrome in base 12 and base 13.

It is a nialpdrome in base 7, base 15 and base 16.

It is not an unprimeable number, because it can be changed into a prime (2381) 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, 62 + ... + 92.

It is an arithmetic number, because the mean of its divisors is an integer number (384).

22387 is an apocalyptic number.

2387 is a deficient number, since it is larger than the sum of its proper divisors (685).

2387 is a wasteful number, since it uses less digits than its factorization.

2387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49.

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

The square root of 2387 is about 48.8569340012. The cubic root of 2387 is about 13.3644412547.

Subtracting 2387 from its reverse (7832), we obtain a palindrome (5445).

The spelling of 2387 in words is "two thousand, three hundred eighty-seven".

Divisors: 1 7 11 31 77 217 341 2387