Search a number
-
+
805995 = 32517911
BaseRepresentation
bin11000100110001101011
31111221121200
43010301223
5201242440
625135243
76564561
oct3046153
91457550
10805995
11500613
1232a523
13222b28
1416da31
1510dc30
hexc4c6b

805995 has 12 divisors (see below), whose sum is σ = 1397136. Its totient is φ = 429840.

The previous prime is 805991. The next prime is 806009. The reversal of 805995 is 599508.

805995 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 805995 - 22 = 805991 is a prime.

805995 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (805991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8911 + ... + 9000.

It is an arithmetic number, because the mean of its divisors is an integer number (116428).

2805995 is an apocalyptic number.

805995 is a deficient number, since it is larger than the sum of its proper divisors (591141).

805995 is a wasteful number, since it uses less digits than its factorization.

805995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17922 (or 17919 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The square root of 805995 is about 897.7722428322. The cubic root of 805995 is about 93.0630858819.

The spelling of 805995 in words is "eight hundred five thousand, nine hundred ninety-five".

Divisors: 1 3 5 9 15 45 17911 53733 89555 161199 268665 805995