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803128 = 23100391
BaseRepresentation
bin11000100000100111000
31111210200111
43010010320
5201200003
625114104
76553324
oct3040470
91453614
10803128
114a9447
12328934
13221731
1416c984
1510ce6d
hexc4138

803128 has 8 divisors (see below), whose sum is σ = 1505880. Its totient is φ = 401560.

The previous prime is 803119. The next prime is 803141. The reversal of 803128 is 821308.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 803099 and 803108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50188 + ... + 50203.

It is an arithmetic number, because the mean of its divisors is an integer number (188235).

2803128 is an apocalyptic number.

It is an amenable number.

803128 is a deficient number, since it is larger than the sum of its proper divisors (702752).

803128 is a wasteful number, since it uses less digits than its factorization.

803128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100397 (or 100393 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 803128 is about 896.1740902302. The cubic root of 803128 is about 92.9526100716.

The spelling of 803128 in words is "eight hundred three thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 100391 200782 401564 803128