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28076984496 = 24321125170619
BaseRepresentation
bin11010001001100001…
…001100100010110000
32200110201210121000200
4122021201030202300
5430000202000441
620522015115200
72012526300441
oct321141144260
980421717020
1028076984496
11109a87a9020
125536b12b00
132855b636c2
141504cad2c8
15ae4dc17b6
hex68984c8b0

28076984496 has 120 divisors (see below), whose sum is σ = 86062616640. Its totient is φ = 8474160000.

The previous prime is 28076984489. The next prime is 28076984497. The reversal of 28076984496 is 69448967082.

28076984496 is a `hidden beast` number, since 2 + 8 + 0 + 7 + 69 + 84 + 496 = 666.

It is not an unprimeable number, because it can be changed into a prime (28076984497) 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 23 ways as a sum of consecutive naturals, for example, 362275 + ... + 432893.

It is an arithmetic number, because the mean of its divisors is an integer number (717188472).

Almost surely, 228076984496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28076984496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43031308320).

28076984496 is an abundant number, since it is smaller than the sum of its proper divisors (57985632144).

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

28076984496 is a wasteful number, since it uses less digits than its factorization.

28076984496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70895 (or 70886 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 63.

The spelling of 28076984496 in words is "twenty-eight billion, seventy-six million, nine hundred eighty-four thousand, four hundred ninety-six".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 33 36 44 48 66 72 88 99 132 144 176 198 251 264 396 502 528 753 792 1004 1506 1584 2008 2259 2761 3012 4016 4518 5522 6024 8283 9036 11044 12048 16566 18072 22088 24849 33132 36144 44176 49698 66264 70619 99396 132528 141238 198792 211857 282476 397584 423714 564952 635571 776809 847428 1129904 1271142 1553618 1694856 2330427 2542284 3107236 3389712 4660854 5084568 6214472 6991281 9321708 10169136 12428944 13982562 17725369 18643416 27965124 35450738 37286832 53176107 55930248 70901476 106352214 111860496 141802952 159528321 194979059 212704428 283605904 319056642 389958118 425408856 584937177 638113284 779916236 850817712 1169874354 1276226568 1559832472 1754811531 2339748708 2552453136 3119664944 3509623062 4679497416 7019246124 9358994832 14038492248 28076984496