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42830 = 254283
BaseRepresentation
bin1010011101001110
32011202022
422131032
52332310
6530142
7235604
oct123516
964668
1042830
112a1a7
1220952
1316658
1411874
15ca55
hexa74e

42830 has 8 divisors (see below), whose sum is σ = 77112. Its totient is φ = 17128.

The previous prime is 42829. The next prime is 42839. The reversal of 42830 is 3824.

42830 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

42830 is strictly pandigital in base 6.

It is a Curzon number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 42799 and 42808.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 42830.

It is not an unprimeable number, because it can be changed into a prime (42839) 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, 2132 + ... + 2151.

It is an arithmetic number, because the mean of its divisors is an integer number (9639).

242830 is an apocalyptic number.

42830 is a deficient number, since it is larger than the sum of its proper divisors (34282).

42830 is a wasteful number, since it uses less digits than its factorization.

42830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4290.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 42830 is about 206.9541011915. The cubic root of 42830 is about 34.9877508156.

The spelling of 42830 in words is "forty-two thousand, eight hundred thirty".

Divisors: 1 2 5 10 4283 8566 21415 42830