Base | Representation |
---|---|
bin | 1110111100110011000 |
3 | 220212222201 |
4 | 1313212120 |
5 | 111134010 |
6 | 14255544 |
7 | 4110136 |
oct | 1674630 |
9 | 825881 |
10 | 489880 |
11 | 305066 |
12 | 1b75b4 |
13 | 141c91 |
14 | ca756 |
15 | 9a23a |
hex | 77998 |
489880 has 32 divisors (see below), whose sum is σ = 1135440. Its totient is φ = 190080.
The previous prime is 489871. The next prime is 489887. The reversal of 489880 is 88984.
It is a Harshad number since it is a multiple of its sum of digits (37).
It is an Ulam number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (489887) 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 7 ways as a sum of consecutive naturals, for example, 1315 + ... + 1645.
2489880 is an apocalyptic number.
489880 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 489880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (567720).
489880 is an abundant number, since it is smaller than the sum of its proper divisors (645560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
489880 is a wasteful number, since it uses less digits than its factorization.
489880 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 379 (or 375 counting only the distinct ones).
The product of its (nonzero) digits is 18432, while the sum is 37.
The square root of 489880 is about 699.9142804658. The cubic root of 489880 is about 78.8309154034.
It can be divided in two parts, 489 and 880, that added together give a square (1369 = 372).
The spelling of 489880 in words is "four hundred eighty-nine thousand, eight hundred eighty".
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