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284028 = 22323669
BaseRepresentation
bin1000101010101111100
3112102121120
41011111330
533042103
610030540
72262033
oct1052574
9472546
10284028
11184438
12118450
139c384
147571a
1559253
hex4557c

284028 has 12 divisors (see below), whose sum is σ = 662760. Its totient is φ = 94672.

The previous prime is 284023. The next prime is 284041. The reversal of 284028 is 820482.

It is a tau number, because it is divible by the number of its divisors (12).

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 283989 and 284007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284023) by changing a digit.

284028 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11823 + ... + 11846.

It is an arithmetic number, because the mean of its divisors is an integer number (55230).

2284028 is an apocalyptic number.

It is an amenable number.

284028 is an abundant number, since it is smaller than the sum of its proper divisors (378732).

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

284028 is a wasteful number, since it uses less digits than its factorization.

284028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23676 (or 23674 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 284028 is about 532.9427736634. The cubic root of 284028 is about 65.7335446298.

The spelling of 284028 in words is "two hundred eighty-four thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 23669 47338 71007 94676 142014 284028