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489907 = 1144537
BaseRepresentation
bin1110111100110110011
3220220000201
41313212303
5111134112
614300031
74110205
oct1674663
9826021
10489907
11305090
121b7617
13141cb2
14ca775
159a257
hex779b3

489907 has 4 divisors (see below), whose sum is σ = 534456. Its totient is φ = 445360.

The previous prime is 489901. The next prime is 489911. The reversal of 489907 is 709984.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 489907 - 215 = 457139 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

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 3 ways as a sum of consecutive naturals, for example, 22258 + ... + 22279.

It is an arithmetic number, because the mean of its divisors is an integer number (133614).

2489907 is an apocalyptic number.

489907 is a deficient number, since it is larger than the sum of its proper divisors (44549).

489907 is a wasteful number, since it uses less digits than its factorization.

489907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44548.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 489907 is about 699.9335682763. The cubic root of 489907 is about 78.8323636463.

The spelling of 489907 in words is "four hundred eighty-nine thousand, nine hundred seven".

Divisors: 1 11 44537 489907