Search a number
-
+
34285 = 56857
BaseRepresentation
bin1000010111101101
31202000211
420113231
52044120
6422421
7201646
oct102755
952024
1034285
1123839
1217a11
13127b4
14c6cd
15a25a
hex85ed

34285 has 4 divisors (see below), whose sum is σ = 41148. Its totient is φ = 27424.

The previous prime is 34283. The next prime is 34297. The reversal of 34285 is 58243.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4356 + 29929 = 66^2 + 173^2 .

It is a cyclic number.

It is not a de Polignac number, because 34285 - 21 = 34283 is a prime.

It is a super-2 number, since 2×342852 = 2350922450, which contains 22 as substring.

34285 is a repfigit number.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 3424 + ... + 3433.

It is an arithmetic number, because the mean of its divisors is an integer number (10287).

234285 is an apocalyptic number.

It is an amenable number.

34285 is a deficient number, since it is larger than the sum of its proper divisors (6863).

34285 is an equidigital number, since it uses as much as digits as its factorization.

34285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6862.

The product of its digits is 960, while the sum is 22.

The square root of 34285 is about 185.1620911526. The cubic root of 34285 is about 32.4863848296.

Adding to 34285 its product of digits (960), we get a triangular number (35245 = T265).

The spelling of 34285 in words is "thirty-four thousand, two hundred eighty-five".

Divisors: 1 5 6857 34285