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806889 = 31012663
BaseRepresentation
bin11000100111111101001
31111222211210
43010333221
5201310024
625143333
76600306
oct3047751
91458753
10806889
11501256
1232ab49
13223365
141700ad
1510e129
hexc4fe9

806889 has 8 divisors (see below), whose sum is σ = 1086912. Its totient is φ = 532400.

The previous prime is 806857. The next prime is 806893. The reversal of 806889 is 988608.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 806889 - 25 = 806857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (806389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1029 + ... + 1634.

It is an arithmetic number, because the mean of its divisors is an integer number (135864).

2806889 is an apocalyptic number.

It is an amenable number.

806889 is a deficient number, since it is larger than the sum of its proper divisors (280023).

806889 is a wasteful number, since it uses less digits than its factorization.

806889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 806889 is about 898.2700039520. The cubic root of 806889 is about 93.0974813214.

The spelling of 806889 in words is "eight hundred six thousand, eight hundred eighty-nine".

Divisors: 1 3 101 303 2663 7989 268963 806889