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486820 = 225101241
BaseRepresentation
bin1110110110110100100
3220201210101
41312312210
5111034240
614233444
74065205
oct1666644
9821711
10486820
11302834
121b5884
13140779
14c95ac
159939a
hex76da4

486820 has 24 divisors (see below), whose sum is σ = 1036728. Its totient is φ = 192000.

The previous prime is 486817. The next prime is 486821. The reversal of 486820 is 28684.

486820 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 224676 + 262144 = 474^2 + 512^2 .

It is not an unprimeable number, because it can be changed into a prime (486821) 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, 1900 + ... + 2140.

It is an arithmetic number, because the mean of its divisors is an integer number (43197).

2486820 is an apocalyptic number.

It is an amenable number.

486820 is an abundant number, since it is smaller than the sum of its proper divisors (549908).

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

486820 is a wasteful number, since it uses less digits than its factorization.

486820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 486820 is about 697.7248741445. The cubic root of 486820 is about 78.6664352510. Note that the first 3 decimals are identical.

The spelling of 486820 in words is "four hundred eighty-six thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 101 202 241 404 482 505 964 1010 1205 2020 2410 4820 24341 48682 97364 121705 243410 486820