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289006 = 2831741
BaseRepresentation
bin1000110100011101110
3112200102221
41012203232
533222011
610105554
72312404
oct1064356
9480387
10289006
11188153
1211b2ba
13a1713
1477474
155a971
hex468ee

289006 has 8 divisors (see below), whose sum is σ = 438984. Its totient is φ = 142680.

The previous prime is 289001. The next prime is 289019. The reversal of 289006 is 600982.

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

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289001) by changing a digit.

289006 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 3 ways as a sum of consecutive naturals, for example, 705 + ... + 1036.

It is an arithmetic number, because the mean of its divisors is an integer number (54873).

2289006 is an apocalyptic number.

289006 is a deficient number, since it is larger than the sum of its proper divisors (149978).

289006 is a wasteful number, since it uses less digits than its factorization.

289006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 289006 is about 537.5927826896. The cubic root of 289006 is about 66.1153477239.

Adding to 289006 its reverse (600982), we get a palindrome (889988).

The spelling of 289006 in words is "two hundred eighty-nine thousand, six".

Divisors: 1 2 83 166 1741 3482 144503 289006