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489480 = 23354079
BaseRepresentation
bin1110111100000001000
3220212102220
41313200020
5111130410
614254040
74106025
oct1674010
9825386
10489480
11304832
121b7320
13141a44
14ca54c
159a070
hex77808

489480 has 32 divisors (see below), whose sum is σ = 1468800. Its totient is φ = 130496.

The previous prime is 489479. The next prime is 489487. The reversal of 489480 is 84984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1920 + ... + 2159.

It is an arithmetic number, because the mean of its divisors is an integer number (45900).

2489480 is an apocalyptic number.

489480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

489480 is an abundant number, since it is smaller than the sum of its proper divisors (979320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489480 is a wasteful number, since it uses less digits than its factorization.

489480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4093 (or 4089 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 489480 is about 699.6284728340. The cubic root of 489480 is about 78.8094537173.

Subtracting from 489480 its reverse (84984), we obtain a square (404496 = 6362).

It can be divided in two parts, 489 and 480, that added together give a palindrome (969).

The spelling of 489480 in words is "four hundred eighty-nine thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 4079 8158 12237 16316 20395 24474 32632 40790 48948 61185 81580 97896 122370 163160 244740 489480