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728341568 = 2643264659
BaseRepresentation
bin101011011010011…
…001110001000000
31212202111120210122
4223122121301000
52442423412233
6200134515412
724022541543
oct5332316100
91782446718
10728341568
11344147889
12183b05b68
13b7b83556
146ca3485a
1543e1ed98
hex2b699c40

728341568 has 28 divisors (see below), whose sum is σ = 1478920080. Its totient is φ = 355700352.

The previous prime is 728341561. The next prime is 728341577. The reversal of 728341568 is 865143827.

It is not an unprimeable number, because it can be changed into a prime (728341561) by changing a digit.

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, 129578 + ... + 135081.

Almost surely, 2728341568 is an apocalyptic number.

It is an amenable number.

728341568 is an abundant number, since it is smaller than the sum of its proper divisors (750578512).

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

728341568 is a wasteful number, since it uses less digits than its factorization.

728341568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264714 (or 264704 counting only the distinct ones).

The product of its digits is 322560, while the sum is 44.

The square root of 728341568 is about 26987.8040603529. The cubic root of 728341568 is about 899.7289587114.

The spelling of 728341568 in words is "seven hundred twenty-eight million, three hundred forty-one thousand, five hundred sixty-eight".

Divisors: 1 2 4 8 16 32 43 64 86 172 344 688 1376 2752 264659 529318 1058636 2117272 4234544 8469088 11380337 16938176 22760674 45521348 91042696 182085392 364170784 728341568