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160042 = 280021
BaseRepresentation
bin100111000100101010
322010112111
4213010222
520110132
63232534
71234411
oct470452
9263474
10160042
11aa273
127874a
1357acc
1442478
1532647
hex2712a

160042 has 4 divisors (see below), whose sum is σ = 240066. Its totient is φ = 80020.

The previous prime is 160033. The next prime is 160049. The reversal of 160042 is 240061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240061 = 673583.

It can be written as a sum of positive squares in only one way, i.e., 159201 + 841 = 399^2 + 29^2 .

It is a super-2 number, since 2×1600422 = 51226883528, which contains 22 as substring.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (160049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40009 + ... + 40012.

2160042 is an apocalyptic number.

160042 is a deficient number, since it is larger than the sum of its proper divisors (80024).

160042 is an equidigital number, since it uses as much as digits as its factorization.

160042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80023.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 160042 is about 400.0524965551. The cubic root of 160042 is about 54.2931021471.

The spelling of 160042 in words is "one hundred sixty thousand, forty-two".

Divisors: 1 2 80021 160042