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489641 = 4359193
BaseRepresentation
bin1110111100010101001
3220212122212
41313202221
5111132031
614254505
74106345
oct1674251
9825585
10489641
11304969
121b7435
13141b39
14ca625
159a12b
hex778a9

489641 has 8 divisors (see below), whose sum is σ = 512160. Its totient is φ = 467712.

The previous prime is 489631. The next prime is 489653. The reversal of 489641 is 146984.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 489641 - 210 = 488617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 489598 and 489607.

It is not an unprimeable number, because it can be changed into a prime (489631) 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, 2441 + ... + 2633.

It is an arithmetic number, because the mean of its divisors is an integer number (64020).

2489641 is an apocalyptic number.

It is an amenable number.

489641 is a deficient number, since it is larger than the sum of its proper divisors (22519).

489641 is a wasteful number, since it uses less digits than its factorization.

489641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295.

The product of its digits is 6912, while the sum is 32.

The square root of 489641 is about 699.7435244431. The cubic root of 489641 is about 78.8180934514.

The spelling of 489641 in words is "four hundred eighty-nine thousand, six hundred forty-one".

Divisors: 1 43 59 193 2537 8299 11387 489641