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285301 is a prime number
BaseRepresentation
bin1000101101001110101
3112111100201
41011221311
533112201
610040501
72265532
oct1055165
9474321
10285301
11185395
12119131
139cb23
1475d89
1559801
hex45a75

285301 has 2 divisors, whose sum is σ = 285302. Its totient is φ = 285300.

The previous prime is 285289. The next prime is 285317. The reversal of 285301 is 103582.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 255025 + 30276 = 505^2 + 174^2 .

It is a cyclic number.

It is not a de Polignac number, because 285301 - 215 = 252533 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142650 + 142651.

It is an arithmetic number, because the mean of its divisors is an integer number (142651).

2285301 is an apocalyptic number.

It is an amenable number.

285301 is a deficient number, since it is larger than the sum of its proper divisors (1).

285301 is an equidigital number, since it uses as much as digits as its factorization.

285301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 285301 is about 534.1357505354. The cubic root of 285301 is about 65.8316031520.

Adding to 285301 its reverse (103582), we get a palindrome (388883).

It can be divided in two parts, 28 and 5301, that added together give a square (5329 = 732).

The spelling of 285301 in words is "two hundred eighty-five thousand, three hundred one".