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BaseRepresentation
bin1000110001000110010
3112121002002
41012020302
533143112
610054002
72304362
oct1061062
9477062
10287282
11186926
1211a302
13a09b8
14769a2
155a1c2
hex46232

287282 has 6 divisors (see below), whose sum is σ = 432063. Its totient is φ = 143262.

The previous prime is 287281. The next prime is 287291. The reversal of 287282 is 282782.

287282 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 143641 + 143641 = 379^2 + 379^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=379.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 287282.

It is not an unprimeable number, because it can be changed into a prime (287281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 569 + ... + 947.

2287282 is an apocalyptic number.

287282 is a deficient number, since it is larger than the sum of its proper divisors (144781).

287282 is an frugal number, since it uses more digits than its factorization.

287282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760 (or 381 counting only the distinct ones).

The product of its digits is 3584, while the sum is 29.

The square root of 287282 is about 535.9869401394. The cubic root of 287282 is about 65.9836200551.

The spelling of 287282 in words is "two hundred eighty-seven thousand, two hundred eighty-two".

Divisors: 1 2 379 758 143641 287282