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489860 = 22573499
BaseRepresentation
bin1110111100110000100
3220212221222
41313212010
5111133420
614255512
74110110
oct1674604
9825858
10489860
11305048
121b7598
13141c77
14ca740
159a225
hex77984

489860 has 24 divisors (see below), whose sum is σ = 1176000. Its totient is φ = 167904.

The previous prime is 489851. The next prime is 489869. The reversal of 489860 is 68984.

It is an interprime number because it is at equal distance from previous prime (489851) and next prime (489869).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 489860.

It is not an unprimeable number, because it can be changed into a prime (489869) by changing a digit.

489860 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1610 + ... + 1889.

It is an arithmetic number, because the mean of its divisors is an integer number (49000).

2489860 is an apocalyptic number.

It is an amenable number.

489860 is an abundant number, since it is smaller than the sum of its proper divisors (686140).

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

489860 is a wasteful number, since it uses less digits than its factorization.

489860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3515 (or 3513 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 489860 is about 699.8999928561. The cubic root of 489860 is about 78.8298425967.

The spelling of 489860 in words is "four hundred eighty-nine thousand, eight hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 3499 6998 13996 17495 24493 34990 48986 69980 97972 122465 244930 489860