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8042 = 24021
BaseRepresentation
bin1111101101010
3102000212
41331222
5224132
6101122
732306
oct17552
912025
108042
116051
1247a2
133878
142d06
1525b2
hex1f6a

8042 has 4 divisors (see below), whose sum is σ = 12066. Its totient is φ = 4020.

The previous prime is 8039. The next prime is 8053. The reversal of 8042 is 2408.

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

It can be written as a sum of positive squares in only one way, i.e., 7921 + 121 = 89^2 + 11^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 8042.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2009 + ... + 2012.

28042 is an apocalyptic number.

8042 is a deficient number, since it is larger than the sum of its proper divisors (4024).

8042 is a wasteful number, since it uses less digits than its factorization.

8042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4023.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 8042 is about 89.6771988858. The cubic root of 8042 is about 20.0349389280.

The spelling of 8042 in words is "eight thousand, forty-two".

Divisors: 1 2 4021 8042