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34287 = 3111039
BaseRepresentation
bin1000010111101111
31202000220
420113233
52044122
6422423
7201651
oct102757
952026
1034287
1123840
1217a13
13127b6
14c6d1
15a25c
hex85ef

34287 has 8 divisors (see below), whose sum is σ = 49920. Its totient is φ = 20760.

The previous prime is 34283. The next prime is 34297. The reversal of 34287 is 78243.

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

It is not a de Polignac number, because 34287 - 22 = 34283 is a prime.

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 34287.

It is not an unprimeable number, because it can be changed into a prime (34283) 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, 487 + ... + 552.

It is an arithmetic number, because the mean of its divisors is an integer number (6240).

234287 is an apocalyptic number.

34287 is a deficient number, since it is larger than the sum of its proper divisors (15633).

34287 is a wasteful number, since it uses less digits than its factorization.

34287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053.

The product of its digits is 1344, while the sum is 24.

The square root of 34287 is about 185.1674917473. The cubic root of 34287 is about 32.4870165101.

Subtracting 34287 from its reverse (78243), we obtain a triangular number (43956 = T296).

The spelling of 34287 in words is "thirty-four thousand, two hundred eighty-seven".

Divisors: 1 3 11 33 1039 3117 11429 34287