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42286 = 221143
BaseRepresentation
bin1010010100101110
32011000011
422110232
52323121
6523434
7234166
oct122456
964004
1042286
1129852
122057a
131632a
14115a6
15c7e1
hexa52e

42286 has 4 divisors (see below), whose sum is σ = 63432. Its totient is φ = 21142.

The previous prime is 42283. The next prime is 42293. The reversal of 42286 is 68224.

42286 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10570 + ... + 10573.

It is an arithmetic number, because the mean of its divisors is an integer number (15858).

242286 is an apocalyptic number.

42286 is a deficient number, since it is larger than the sum of its proper divisors (21146).

42286 is a wasteful number, since it uses less digits than its factorization.

42286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21145.

The product of its digits is 768, while the sum is 22.

The square root of 42286 is about 205.6356000307. The cubic root of 42286 is about 34.8389883195.

The spelling of 42286 in words is "forty-two thousand, two hundred eighty-six".

Divisors: 1 2 21143 42286