Search a number
-
+
79085 = 515817
BaseRepresentation
bin10011010011101101
311000111002
4103103231
510012320
61410045
7446366
oct232355
9130432
1079085
1154466
1239925
1329cc6
1420b6d
1518675
hex134ed

79085 has 4 divisors (see below), whose sum is σ = 94908. Its totient is φ = 63264.

The previous prime is 79063. The next prime is 79087. The reversal of 79085 is 58097.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 51529 + 27556 = 227^2 + 166^2 .

It is a cyclic number.

It is not a de Polignac number, because 79085 - 214 = 62701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79087) 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, 7904 + ... + 7913.

It is an arithmetic number, because the mean of its divisors is an integer number (23727).

279085 is an apocalyptic number.

It is an amenable number.

79085 is a deficient number, since it is larger than the sum of its proper divisors (15823).

79085 is a wasteful number, since it uses less digits than its factorization.

79085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15822.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 79085 is about 281.2205540141. The cubic root of 79085 is about 42.9237878444.

The spelling of 79085 in words is "seventy-nine thousand, eighty-five".

Divisors: 1 5 15817 79085