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284242 = 2779257
BaseRepresentation
bin1000101011001010010
3112102220111
41011121102
533043432
610031534
72262460
oct1053122
9472814
10284242
11184612
121185aa
139c4ba
1475830
1559347
hex45652

284242 has 16 divisors (see below), whose sum is σ = 495360. Its totient is φ = 119808.

The previous prime is 284237. The next prime is 284243. The reversal of 284242 is 242482.

284242 is a modest number, since divided by 4242 gives 28 as remainder.

It is not an unprimeable number, because it can be changed into a prime (284243) by changing a digit.

284242 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 7 ways as a sum of consecutive naturals, for example, 978 + ... + 1234.

It is an arithmetic number, because the mean of its divisors is an integer number (30960).

2284242 is an apocalyptic number.

284242 is a deficient number, since it is larger than the sum of its proper divisors (211118).

284242 is a wasteful number, since it uses less digits than its factorization.

284242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345.

The product of its digits is 1024, while the sum is 22.

The square root of 284242 is about 533.1435078851. The cubic root of 284242 is about 65.7500493959.

The spelling of 284242 in words is "two hundred eighty-four thousand, two hundred forty-two".

Divisors: 1 2 7 14 79 158 257 514 553 1106 1799 3598 20303 40606 142121 284242