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28064703 = 331523577
BaseRepresentation
bin110101100001…
…1101110111111
31221210211112110
41223003232333
524141032303
62441305103
7460355202
oct153035677
957724473
1028064703
1114929477
129495193
135a78144
143a27939
1526e5703
hex1ac3bbf

28064703 has 16 divisors (see below), whose sum is σ = 38767616. Its totient is φ = 18040320.

The previous prime is 28064693. The next prime is 28064711. The reversal of 28064703 is 30746082.

It is not a de Polignac number, because 28064703 - 26 = 28064639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28064713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48351 + ... + 48927.

It is an arithmetic number, because the mean of its divisors is an integer number (2422976).

Almost surely, 228064703 is an apocalyptic number.

28064703 is a deficient number, since it is larger than the sum of its proper divisors (10702913).

28064703 is a wasteful number, since it uses less digits than its factorization.

28064703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 28064703 is about 5297.6129530195. The cubic root of 28064703 is about 303.8926177466.

The spelling of 28064703 in words is "twenty-eight million, sixty-four thousand, seven hundred three".

Divisors: 1 3 31 93 523 577 1569 1731 16213 17887 48639 53661 301771 905313 9354901 28064703