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8027728 = 241926407
BaseRepresentation
bin11110100111111001010000
3120002211222021
4132213321100
54023341403
6444021224
7125143312
oct36477120
916084867
108027728
114593395
122831814
131880c47
1410cd7b2
15a888bd
hex7a7e50

8027728 has 20 divisors (see below), whose sum is σ = 16372960. Its totient is φ = 3802464.

The previous prime is 8027699. The next prime is 8027807. The reversal of 8027728 is 8277208.

It is a junction number, because it is equal to n+sod(n) for n = 8027693 and 8027702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12900 + ... + 13507.

It is an arithmetic number, because the mean of its divisors is an integer number (818648).

Almost surely, 28027728 is an apocalyptic number.

It is an amenable number.

8027728 is an abundant number, since it is smaller than the sum of its proper divisors (8345232).

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

8027728 is a wasteful number, since it uses less digits than its factorization.

8027728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26434 (or 26428 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 8027728 is about 2833.3245490060. The cubic root of 8027728 is about 200.2308002205.

The spelling of 8027728 in words is "eight million, twenty-seven thousand, seven hundred twenty-eight".

Divisors: 1 2 4 8 16 19 38 76 152 304 26407 52814 105628 211256 422512 501733 1003466 2006932 4013864 8027728