Search a number
-
+
8043085 = 51608617
BaseRepresentation
bin11110101011101001001101
3120010122001001
4132223221031
54024334320
6444220301
7125236141
oct36535115
916118031
108043085
1145a3986
12283a691
131887c2b
1410d5221
15a8d20a
hex7aba4d

8043085 has 4 divisors (see below), whose sum is σ = 9651708. Its totient is φ = 6434464.

The previous prime is 8043073. The next prime is 8043089. The reversal of 8043085 is 5803408.

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 5692996 + 2350089 = 2386^2 + 1533^2 .

It is a cyclic number.

It is not a de Polignac number, because 8043085 - 211 = 8041037 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 (8043089) 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, 804304 + ... + 804313.

It is an arithmetic number, because the mean of its divisors is an integer number (2412927).

Almost surely, 28043085 is an apocalyptic number.

It is an amenable number.

8043085 is a deficient number, since it is larger than the sum of its proper divisors (1608623).

8043085 is a wasteful number, since it uses less digits than its factorization.

8043085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608622.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 8043085 is about 2836.0333213839. The cubic root of 8043085 is about 200.3583990337.

The spelling of 8043085 in words is "eight million, forty-three thousand, eighty-five".

Divisors: 1 5 1608617 8043085