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489861008 = 247133110853
BaseRepresentation
bin11101001100101…
…010111110010000
31021010202111222022
4131030222332100
52000401023013
6120335231012
715065515130
oct3514527620
91233674868
10489861008
1123157190a
12118078468
137a6451b0
14490b6ac0
152d014008
hex1d32af90

489861008 has 80 divisors (see below), whose sum is σ = 1205922816. Its totient is φ = 187522560.

The previous prime is 489860951. The next prime is 489861017. The reversal of 489861008 is 800168984.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 489861008.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39710 + ... + 50562.

Almost surely, 2489861008 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 489861008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (602961408).

489861008 is an abundant number, since it is smaller than the sum of its proper divisors (716061808).

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

489861008 is a wasteful number, since it uses less digits than its factorization.

489861008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10912 (or 10906 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 44.

The square root of 489861008 is about 22132.8038892500. The cubic root of 489861008 is about 788.2989666682.

It can be divided in two parts, 48986 and 1008, that added together give a palindrome (49994).

The spelling of 489861008 in words is "four hundred eighty-nine million, eight hundred sixty-one thousand, eight".

Divisors: 1 2 4 7 8 13 14 16 26 28 31 52 56 62 91 104 112 124 182 208 217 248 364 403 434 496 728 806 868 1456 1612 1736 2821 3224 3472 5642 6448 10853 11284 21706 22568 43412 45136 75971 86824 141089 151942 173648 282178 303884 336443 564356 607768 672886 987623 1128712 1215536 1345772 1975246 2257424 2355101 2691544 3950492 4373759 4710202 5383088 7900984 8747518 9420404 15801968 17495036 18840808 30616313 34990072 37681616 61232626 69980144 122465252 244930504 489861008