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489448 = 23193317
BaseRepresentation
bin1110111011111101000
3220212101201
41313133220
5111130243
614253544
74105651
oct1673750
9825351
10489448
11304803
121b72b4
13141a1b
14ca528
159a04d
hex777e8

489448 has 16 divisors (see below), whose sum is σ = 925380. Its totient is φ = 242688.

The previous prime is 489439. The next prime is 489449. The reversal of 489448 is 844984.

It can be written as a sum of positive squares in 2 ways, for example, as 412164 + 77284 = 642^2 + 278^2 .

Its product of digits (36864) is a multiple of the sum of its prime divisors (512).

It is not an unprimeable number, because it can be changed into a prime (489449) 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, 1386 + ... + 1702.

2489448 is an apocalyptic number.

It is an amenable number.

489448 is a deficient number, since it is larger than the sum of its proper divisors (435932).

489448 is a wasteful number, since it uses less digits than its factorization.

489448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 512 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 489448 is about 699.6056031794. The cubic root of 489448 is about 78.8077362774.

The spelling of 489448 in words is "four hundred eighty-nine thousand, four hundred forty-eight".

Divisors: 1 2 4 8 193 317 386 634 772 1268 1544 2536 61181 122362 244724 489448