Search a number
-
+
489808000 = 275311323
BaseRepresentation
bin11101001100011…
…110000010000000
31021010122211021001
4131030132002000
52000342324000
6120334141344
715065204443
oct3514360200
91233584231
10489808000
11231536000
12118051854
137a627026
14490a165a
152d00346a
hex1d31e080

489808000 has 256 divisors, whose sum is σ = 1397710080. Its totient is φ = 170368000.

The previous prime is 489807949. The next prime is 489808001. The reversal of 489808000 is 808984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489808001) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 21295989 + ... + 21296011.

It is an arithmetic number, because the mean of its divisors is an integer number (5459805).

Almost surely, 2489808000 is an apocalyptic number.

489808000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489808000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (698855040).

489808000 is an abundant number, since it is smaller than the sum of its proper divisors (907902080).

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

489808000 is an equidigital number, since it uses as much as digits as its factorization.

489808000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 489808000 is about 22131.6063583284. The cubic root of 489808000 is about 788.2705316235.

The spelling of 489808000 in words is "four hundred eighty-nine million, eight hundred eight thousand".