Base | Representation |
---|---|
bin | 1110111100111001010 |
3 | 220220001120 |
4 | 1313213022 |
5 | 111134210 |
6 | 14300110 |
7 | 4110240 |
oct | 1674712 |
9 | 826046 |
10 | 489930 |
11 | 305101 |
12 | 1b7636 |
13 | 141ccc |
14 | ca790 |
15 | 9a270 |
hex | 779ca |
489930 has 32 divisors (see below), whose sum is σ = 1344384. Its totient is φ = 111936.
The previous prime is 489913. The next prime is 489941. The reversal of 489930 is 39984.
It is a junction number, because it is equal to n+sod(n) for n = 489891 and 489900.
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, 957 + ... + 1376.
It is an arithmetic number, because the mean of its divisors is an integer number (42012).
2489930 is an apocalyptic number.
489930 is an abundant number, since it is smaller than the sum of its proper divisors (854454).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
489930 is a wasteful number, since it uses less digits than its factorization.
489930 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2350.
The product of its (nonzero) digits is 7776, while the sum is 33.
The square root of 489930 is about 699.9499982142. The cubic root of 489930 is about 78.8335972927.
The spelling of 489930 in words is "four hundred eighty-nine thousand, nine hundred thirty".
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