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288085 = 578231
BaseRepresentation
bin1000110010101010101
3112122011211
41012111111
533204320
610101421
72306620
oct1062525
9478154
10288085
11187496
1211a871
13a1185
1476db7
155a55a
hex46555

288085 has 8 divisors (see below), whose sum is σ = 395136. Its totient is φ = 197520.

The previous prime is 288077. The next prime is 288089. The reversal of 288085 is 580882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 288085 - 23 = 288077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4081 + ... + 4150.

It is an arithmetic number, because the mean of its divisors is an integer number (49392).

2288085 is an apocalyptic number.

It is an amenable number.

288085 is a deficient number, since it is larger than the sum of its proper divisors (107051).

288085 is an equidigital number, since it uses as much as digits as its factorization.

288085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8243.

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 288085 is about 536.7355028317. The cubic root of 288085 is about 66.0450411864.

The spelling of 288085 in words is "two hundred eighty-eight thousand, eighty-five".

Divisors: 1 5 7 35 8231 41155 57617 288085