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8105028 = 223675419
BaseRepresentation
bin11110111010110001000100
3120020210000020
4132322301010
54033330103
6445415140
7125614551
oct36726104
916223006
108105028
114636478
12286a4b0
1318aa199
14110da28
15aa1753
hex7bac44

8105028 has 12 divisors (see below), whose sum is σ = 18911760. Its totient is φ = 2701672.

The previous prime is 8105021. The next prime is 8105047. The reversal of 8105028 is 8205018.

8105028 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 8104989 and 8105007.

It is not an unprimeable number, because it can be changed into a prime (8105021) 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, 337698 + ... + 337721.

It is an arithmetic number, because the mean of its divisors is an integer number (1575980).

Almost surely, 28105028 is an apocalyptic number.

It is an amenable number.

8105028 is an abundant number, since it is smaller than the sum of its proper divisors (10806732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8105028 is a wasteful number, since it uses less digits than its factorization.

8105028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675426 (or 675424 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 8105028 is about 2846.9330866741. The cubic root of 8105028 is about 200.8714308600.

The spelling of 8105028 in words is "eight million, one hundred five thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 675419 1350838 2026257 2701676 4052514 8105028