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807028 = 22201757
BaseRepresentation
bin11000101000001110100
31112000000221
43011001310
5201311103
625144124
76600565
oct3050164
91460027
10807028
11501372
1232b044
13223441
1417016c
1510e1bd
hexc5074

807028 has 6 divisors (see below), whose sum is σ = 1412306. Its totient is φ = 403512.

The previous prime is 807017. The next prime is 807071. The reversal of 807028 is 820708.

It can be written as a sum of positive squares in only one way, i.e., 425104 + 381924 = 652^2 + 618^2 .

It is a junction number, because it is equal to n+sod(n) for n = 806993 and 807011.

It is a congruent number.

It is an unprimeable number.

807028 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100875 + ... + 100882.

2807028 is an apocalyptic number.

It is an amenable number.

807028 is a deficient number, since it is larger than the sum of its proper divisors (605278).

807028 is a wasteful number, since it uses less digits than its factorization.

807028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201761 (or 201759 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 807028 is about 898.3473715663. The cubic root of 807028 is about 93.1028268757.

The spelling of 807028 in words is "eight hundred seven thousand, twenty-eight".

Divisors: 1 2 4 201757 403514 807028