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489047 = 1337619
BaseRepresentation
bin1110111011001010111
3220211211212
41313121113
5111122142
614252035
74104536
oct1673127
9824755
10489047
11304479
121b701b
131417a0
14ca31d
1599d82
hex77657

489047 has 4 divisors (see below), whose sum is σ = 526680. Its totient is φ = 451416.

The previous prime is 489043. The next prime is 489053. The reversal of 489047 is 740984.

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 489047 - 22 = 489043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489043) 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, 18797 + ... + 18822.

It is an arithmetic number, because the mean of its divisors is an integer number (131670).

2489047 is an apocalyptic number.

489047 is a deficient number, since it is larger than the sum of its proper divisors (37633).

489047 is a wasteful number, since it uses less digits than its factorization.

489047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37632.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 489047 is about 699.3189544121. The cubic root of 489047 is about 78.7862082591.

The spelling of 489047 in words is "four hundred eighty-nine thousand, forty-seven".

Divisors: 1 13 37619 489047