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8307028 = 2219109303
BaseRepresentation
bin11111101100000101010100
3120122001002201
4133230011110
54111311103
6454014244
7130415512
oct37540524
916561081
108307028
114764214
122947384
13194b102
1411634b2
15ae151d
hex7ec154

8307028 has 12 divisors (see below), whose sum is σ = 15302560. Its totient is φ = 3934872.

The previous prime is 8307017. The next prime is 8307037. The reversal of 8307028 is 8207038.

It is a happy number.

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 = 8306987 and 8307005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54576 + ... + 54727.

Almost surely, 28307028 is an apocalyptic number.

It is an amenable number.

8307028 is a deficient number, since it is larger than the sum of its proper divisors (6995532).

8307028 is a wasteful number, since it uses less digits than its factorization.

8307028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109326 (or 109324 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 8307028 is about 2882.1915272931. The cubic root of 8307028 is about 202.5265158592.

The spelling of 8307028 in words is "eight million, three hundred seven thousand, twenty-eight".

Divisors: 1 2 4 19 38 76 109303 218606 437212 2076757 4153514 8307028