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802828 = 221315439
BaseRepresentation
bin11000100000000001100
31111210021101
43010000030
5201142303
625112444
76552415
oct3040014
91453241
10802828
114a91a4
12328724
13221560
1416c80c
1510cd1d
hexc400c

802828 has 12 divisors (see below), whose sum is σ = 1513120. Its totient is φ = 370512.

The previous prime is 802811. The next prime is 802829. The reversal of 802828 is 828208.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 802796 and 802805.

It is not an unprimeable number, because it can be changed into a prime (802829) by changing a digit.

802828 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7668 + ... + 7771.

2802828 is an apocalyptic number.

It is an amenable number.

802828 is a deficient number, since it is larger than the sum of its proper divisors (710292).

802828 is a wasteful number, since it uses less digits than its factorization.

802828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15456 (or 15454 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 802828 is about 896.0066964035. The cubic root of 802828 is about 92.9410348076.

The spelling of 802828 in words is "eight hundred two thousand, eight hundred twenty-eight".

Divisors: 1 2 4 13 26 52 15439 30878 61756 200707 401414 802828