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538860 = 223571283
BaseRepresentation
bin10000011100011101100
31000101011210
42003203230
5114220420
615314420
74403010
oct2034354
91011153
10538860
11338943
1221ba10
1315b36a
14100540
15a99e0
hex838ec

538860 has 48 divisors (see below), whose sum is σ = 1725696. Its totient is φ = 123072.

The previous prime is 538841. The next prime is 538871. The reversal of 538860 is 68835.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

538860 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 15 ways as a sum of consecutive naturals, for example, 222 + ... + 1061.

It is an arithmetic number, because the mean of its divisors is an integer number (35952).

2538860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (862848).

538860 is an abundant number, since it is smaller than the sum of its proper divisors (1186836).

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

538860 is a wasteful number, since it uses less digits than its factorization.

538860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302 (or 1300 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 538860 is about 734.0708412681. The cubic root of 538860 is about 81.3751837533.

The spelling of 538860 in words is "five hundred thirty-eight thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 1283 2566 3849 5132 6415 7698 8981 12830 15396 17962 19245 25660 26943 35924 38490 44905 53886 76980 89810 107772 134715 179620 269430 538860