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489288 = 233192937
BaseRepresentation
bin1110111011101001000
3220212011210
41313131020
5111124123
614253120
74105332
oct1673510
9825153
10489288
11304678
121b71a0
13141927
14ca452
1599e93
hex77748

489288 has 64 divisors (see below), whose sum is σ = 1368000. Its totient is φ = 145152.

The previous prime is 489283. The next prime is 489299. The reversal of 489288 is 882984.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489283) by changing a digit.

489288 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13206 + ... + 13242.

It is an arithmetic number, because the mean of its divisors is an integer number (21375).

2489288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (684000).

489288 is an abundant number, since it is smaller than the sum of its proper divisors (878712).

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

489288 is a wasteful number, since it uses less digits than its factorization.

489288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 90 counting only the distinct ones).

The product of its digits is 36864, while the sum is 39.

The square root of 489288 is about 699.4912436907. The cubic root of 489288 is about 78.7991479547.

It can be divided in two parts, 489 and 288, that added together give a palindrome (777).

The spelling of 489288 in words is "four hundred eighty-nine thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 19 24 29 37 38 57 58 74 76 87 111 114 116 148 152 174 222 228 232 296 348 444 456 551 696 703 888 1073 1102 1406 1653 2109 2146 2204 2812 3219 3306 4218 4292 4408 5624 6438 6612 8436 8584 12876 13224 16872 20387 25752 40774 61161 81548 122322 163096 244644 489288