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489930 = 23572333
BaseRepresentation
bin1110111100111001010
3220220001120
41313213022
5111134210
614300110
74110240
oct1674712
9826046
10489930
11305101
121b7636
13141ccc
14ca790
159a270
hex779ca

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".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 2333 4666 6999 11665 13998 16331 23330 32662 34995 48993 69990 81655 97986 163310 244965 489930