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806057 = 7115151
BaseRepresentation
bin11000100110010101001
31111221200222
43010302221
5201243212
625135425
76565010
oct3046251
91457628
10806057
1150066a
1232a575
13222b75
1416da77
1510dc72
hexc4ca9

806057 has 4 divisors (see below), whose sum is σ = 921216. Its totient is φ = 690900.

The previous prime is 806051. The next prime is 806059. The reversal of 806057 is 750608.

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 not a de Polignac number, because 806057 - 24 = 806041 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 806057.

It is not an unprimeable number, because it can be changed into a prime (806051) 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, 57569 + ... + 57582.

It is an arithmetic number, because the mean of its divisors is an integer number (230304).

2806057 is an apocalyptic number.

It is an amenable number.

806057 is a deficient number, since it is larger than the sum of its proper divisors (115159).

806057 is a wasteful number, since it uses less digits than its factorization.

806057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115158.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 806057 is about 897.8067720841. The cubic root of 806057 is about 93.0654720685.

The spelling of 806057 in words is "eight hundred six thousand, fifty-seven".

Divisors: 1 7 115151 806057