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42158 = 2107197
BaseRepresentation
bin1010010010101110
32010211102
422102232
52322113
6523102
7233624
oct122256
963742
1042158
1129746
1220492
131625c
1411514
15c758
hexa4ae

42158 has 8 divisors (see below), whose sum is σ = 64152. Its totient is φ = 20776.

The previous prime is 42157. The next prime is 42169. The reversal of 42158 is 85124.

42158 is digitally balanced in base 2, 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.

It is a Curzon number.

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 (42157) 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, 116 + ... + 312.

It is an arithmetic number, because the mean of its divisors is an integer number (8019).

242158 is an apocalyptic number.

42158 is a deficient number, since it is larger than the sum of its proper divisors (21994).

42158 is a wasteful number, since it uses less digits than its factorization.

42158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306.

The product of its digits is 320, while the sum is 20.

The square root of 42158 is about 205.3241339931. The cubic root of 42158 is about 34.8038001751.

The spelling of 42158 in words is "forty-two thousand, one hundred fifty-eight".

Divisors: 1 2 107 197 214 394 21079 42158