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489902 = 2724999
BaseRepresentation
bin1110111100110101110
3220220000112
41313212232
5111134102
614300022
74110200
oct1674656
9826015
10489902
11305086
121b7612
13141caa
14ca770
159a252
hex779ae

489902 has 12 divisors (see below), whose sum is σ = 855000. Its totient is φ = 209916.

The previous prime is 489901. The next prime is 489911. The reversal of 489902 is 209984.

It is a plaindrome in base 16.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2402 + ... + 2597.

It is an arithmetic number, because the mean of its divisors is an integer number (71250).

2489902 is an apocalyptic number.

489902 is a deficient number, since it is larger than the sum of its proper divisors (365098).

489902 is a wasteful number, since it uses less digits than its factorization.

489902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5015 (or 5008 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 489902 is about 699.9299964996. The cubic root of 489902 is about 78.8320954572.

The spelling of 489902 in words is "four hundred eighty-nine thousand, nine hundred two".

Divisors: 1 2 7 14 49 98 4999 9998 34993 69986 244951 489902