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28043610234 = 23192287107563
BaseRepresentation
bin11010000111100001…
…111000100001111010
32200101102000000010220
4122013201320201322
5424413131011414
620514423520510
72011642516413
oct320741704172
980342000126
1028043610234
1110990983492
1255278b9136
13284bc79913
1415006a280a
15ae1eccca9
hex68787887a

28043610234 has 32 divisors (see below), whose sum is σ = 59065543680. Its totient is φ = 8851922352.

The previous prime is 28043610233. The next prime is 28043610251. The reversal of 28043610234 is 43201634082.

It is a junction number, because it is equal to n+sod(n) for n = 28043610195 and 28043610204.

It is not an unprimeable number, because it can be changed into a prime (28043610233) 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, 206937 + ... + 314499.

It is an arithmetic number, because the mean of its divisors is an integer number (1845798240).

Almost surely, 228043610234 is an apocalyptic number.

28043610234 is an abundant number, since it is smaller than the sum of its proper divisors (31021933446).

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

28043610234 is a wasteful number, since it uses less digits than its factorization.

28043610234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109874.

The product of its (nonzero) digits is 27648, while the sum is 33.

The spelling of 28043610234 in words is "twenty-eight billion, forty-three million, six hundred ten thousand, two hundred thirty-four".

Divisors: 1 2 3 6 19 38 57 114 2287 4574 6861 13722 43453 86906 107563 130359 215126 260718 322689 645378 2043697 4087394 6131091 12262182 245996581 491993162 737989743 1475979486 4673935039 9347870078 14021805117 28043610234