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284238 = 23215791
BaseRepresentation
bin1000101011001001110
3112102220100
41011121032
533043423
610031530
72262453
oct1053116
9472810
10284238
11184609
121185a6
139c4b6
147582a
1559343
hex4564e

284238 has 12 divisors (see below), whose sum is σ = 615888. Its totient is φ = 94740.

The previous prime is 284237. The next prime is 284243. The reversal of 284238 is 832482.

284238 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 284238.

It is not an unprimeable number, because it can be changed into a prime (284231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7878 + ... + 7913.

It is an arithmetic number, because the mean of its divisors is an integer number (51324).

2284238 is an apocalyptic number.

284238 is an abundant number, since it is smaller than the sum of its proper divisors (331650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

284238 is a wasteful number, since it uses less digits than its factorization.

284238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15799 (or 15796 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 284238 is about 533.1397565367. The cubic root of 284238 is about 65.7497409716.

The spelling of 284238 in words is "two hundred eighty-four thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 9 18 15791 31582 47373 94746 142119 284238