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BaseRepresentation
bin1010011101101100
32011210102
422131230
52332420
6530232
7235646
oct123554
964712
1042860
112a224
1220978
131667c
1411896
15ca75
hexa76c

42860 has 12 divisors (see below), whose sum is σ = 90048. Its totient is φ = 17136.

The previous prime is 42859. The next prime is 42863. The reversal of 42860 is 6824.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 2143 = 42860 / (4 + 2 + 8 + 6 + 0).

It is a plaindrome in base 13.

It is a nialpdrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 42860.

It is not an unprimeable number, because it can be changed into a prime (42863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1052 + ... + 1091.

It is an arithmetic number, because the mean of its divisors is an integer number (7504).

242860 is an apocalyptic number.

It is an amenable number.

42860 is an abundant number, since it is smaller than the sum of its proper divisors (47188).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45024).

42860 is a wasteful number, since it uses less digits than its factorization.

42860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152 (or 2150 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 42860 is about 207.0265683433. The cubic root of 42860 is about 34.9959178913.

The spelling of 42860 in words is "forty-two thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 2143 4286 8572 10715 21430 42860