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286244 = 22710223
BaseRepresentation
bin1000101111000100100
3112112122122
41011320210
533124434
610045112
72301350
oct1057044
9475578
10286244
11186072
12119798
13a039a
1476460
1559c2e
hex45e24

286244 has 12 divisors (see below), whose sum is σ = 572544. Its totient is φ = 122664.

The previous prime is 286243. The next prime is 286249. The reversal of 286244 is 442682.

286244 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 286244.

It is not an unprimeable number, because it can be changed into a prime (286243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5084 + ... + 5139.

It is an arithmetic number, because the mean of its divisors is an integer number (47712).

2286244 is an apocalyptic number.

It is an amenable number.

286244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

286244 is a wasteful number, since it uses less digits than its factorization.

286244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10234 (or 10232 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

The square root of 286244 is about 535.0177567147. The cubic root of 286244 is about 65.9040540380.

The spelling of 286244 in words is "two hundred eighty-six thousand, two hundred forty-four".

Divisors: 1 2 4 7 14 28 10223 20446 40892 71561 143122 286244