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805133 = 7115019
BaseRepresentation
bin11000100100100001101
31111220102202
43010210031
5201231013
625131245
76562220
oct3044415
91456382
10805133
114aa9aa
12329b25
13222614
1416d5b7
1510d858
hexc490d

805133 has 4 divisors (see below), whose sum is σ = 920160. Its totient is φ = 690108.

The previous prime is 805121. The next prime is 805153. The reversal of 805133 is 331508.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 805133 - 28 = 804877 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 805133.

It is not an unprimeable number, because it can be changed into a prime (805153) 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, 57503 + ... + 57516.

It is an arithmetic number, because the mean of its divisors is an integer number (230040).

2805133 is an apocalyptic number.

It is an amenable number.

805133 is a deficient number, since it is larger than the sum of its proper divisors (115027).

805133 is a wasteful number, since it uses less digits than its factorization.

805133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115026.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 805133 is about 897.2920371874. The cubic root of 805133 is about 93.0298975059.

The spelling of 805133 in words is "eight hundred five thousand, one hundred thirty-three".

Divisors: 1 7 115019 805133