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823013310328 = 231173831543559
BaseRepresentation
bin10111111100111110110…
…10100111111101111000
32220200100012202000220121
423332133122213331320
5101441012401412303
61430030451303024
7113314015466146
oct13763732477570
92820305660817
10823013310328
11298046615430
121136095aaa74
135c7c0a19071
142bb9691a596
151661d8809bd
hexbf9f6a7f78

823013310328 has 64 divisors (see below), whose sum is σ = 1727058412800. Its totient is φ = 364526657280.

The previous prime is 823013310263. The next prime is 823013310377.

823013310328 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 823013310293 and 823013310302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238588 + ... + 1304971.

It is an arithmetic number, because the mean of its divisors is an integer number (26985287700).

Almost surely, 2823013310328 is an apocalyptic number.

823013310328 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

823013310328 is an abundant number, since it is smaller than the sum of its proper divisors (904045102472).

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

823013310328 is a wasteful number, since it uses less digits than its factorization.

823013310328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1543732 (or 1543728 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 823013310328 in words is "eight hundred twenty-three billion, thirteen million, three hundred ten thousand, three hundred twenty-eight".

Divisors: 1 2 4 8 11 22 44 73 83 88 146 166 292 332 584 664 803 913 1606 1826 3212 3652 6059 6424 7304 12118 24236 48472 66649 133298 266596 533192 1543559 3087118 6174236 12348472 16979149 33958298 67916596 112679807 128115397 135833192 225359614 256230794 450719228 512461588 901438456 1024923176 1239477877 1409269367 2478955754 2818538734 4957911508 5637077468 9352423981 9915823016 11274154936 18704847962 37409695924 74819391848 102876663791 205753327582 411506655164 823013310328