Search a number
-
+
282485 = 5721153
BaseRepresentation
bin1000100111101110101
3112100111102
41010331311
533014420
610015445
72254400
oct1047565
9470442
10282485
11183265
12117585
139b768
1474d37
1558a75
hex44f75

282485 has 12 divisors (see below), whose sum is σ = 394668. Its totient is φ = 193536.

The previous prime is 282481. The next prime is 282487. The reversal of 282485 is 584282.

It can be written as a sum of positive squares in 2 ways, for example, as 164836 + 117649 = 406^2 + 343^2 .

It is not a de Polignac number, because 282485 - 22 = 282481 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 214 + 82 + 44 + 218 + 83 + 55 .

It is a Duffinian number.

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 282485.

It is not an unprimeable number, because it can be changed into a prime (282481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 332 + ... + 821.

It is an arithmetic number, because the mean of its divisors is an integer number (32889).

2282485 is an apocalyptic number.

It is an amenable number.

282485 is a deficient number, since it is larger than the sum of its proper divisors (112183).

282485 is a wasteful number, since it uses less digits than its factorization.

282485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172 (or 1165 counting only the distinct ones).

The product of its digits is 5120, while the sum is 29.

The square root of 282485 is about 531.4931796364. The cubic root of 282485 is about 65.6142945500.

It can be divided in two parts, 282 and 485, that added together give a palindrome (767).

The spelling of 282485 in words is "two hundred eighty-two thousand, four hundred eighty-five".

Divisors: 1 5 7 35 49 245 1153 5765 8071 40355 56497 282485