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287252 = 22710259
BaseRepresentation
bin1000110001000010100
3112121000222
41012020110
533143002
610053512
72304320
oct1061024
9477028
10287252
111868a9
1211a298
13a0994
1476980
155a1a2
hex46214

287252 has 12 divisors (see below), whose sum is σ = 574560. Its totient is φ = 123096.

The previous prime is 287251. The next prime is 287257. The reversal of 287252 is 252782.

287252 is an admirable number.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 213 + 82 + 214 + 73 + 53 + 218 .

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 287252.

It is not an unprimeable number, because it can be changed into a prime (287251) 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, 5102 + ... + 5157.

It is an arithmetic number, because the mean of its divisors is an integer number (47880).

2287252 is an apocalyptic number.

It is an amenable number.

287252 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.

287252 is a wasteful number, since it uses less digits than its factorization.

287252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10270 (or 10268 counting only the distinct ones).

The product of its digits is 2240, while the sum is 26.

The square root of 287252 is about 535.9589536522. The cubic root of 287252 is about 65.9813231511.

The spelling of 287252 in words is "two hundred eighty-seven thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 28 10259 20518 41036 71813 143626 287252