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28719092304 = 2432782134703
BaseRepresentation
bin11010101111110010…
…101001001001010000
32202010111001001100100
4122233302221021100
5432304041423204
621105433452400
72034454154040
oct325762511120
982114031310
1028719092304
11111a81a7131
125695b71100
132928bb3356
141566297720
15b3145aa39
hex6afca9250

28719092304 has 120 divisors (see below), whose sum is σ = 91970042112. Its totient is φ = 8195224320.

The previous prime is 28719092263. The next prime is 28719092309. The reversal of 28719092304 is 40329091782.

It is a self number, because there is not a number n which added to its sum of digits gives 28719092304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28719092309) 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 23 ways as a sum of consecutive naturals, for example, 810217 + ... + 844919.

Almost surely, 228719092304 is an apocalyptic number.

28719092304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28719092304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45985021056).

28719092304 is an abundant number, since it is smaller than the sum of its proper divisors (63250949808).

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

28719092304 is a wasteful number, since it uses less digits than its factorization.

28719092304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35545 (or 35536 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 28719092304 in words is "twenty-eight billion, seven hundred nineteen million, ninety-two thousand, three hundred four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 72 84 112 126 144 168 252 336 504 821 1008 1642 2463 3284 4926 5747 6568 7389 9852 11494 13136 14778 17241 19704 22988 29556 34482 34703 39408 45976 51723 59112 68964 69406 91952 103446 104109 118224 137928 138812 206892 208218 242921 275856 277624 312327 413784 416436 485842 555248 624654 728763 827568 832872 971684 1249308 1457526 1665744 1943368 2186289 2498616 2915052 3886736 4372578 4997232 5830104 8745156 11660208 17490312 28491163 34980624 56982326 85473489 113964652 170946978 199438141 227929304 256420467 341893956 398876282 455858608 512840934 598314423 683787912 797752564 1025681868 1196628846 1367575824 1595505128 1794943269 2051363736 2393257692 3191010256 3589886538 4102727472 4786515384 7179773076 9573030768 14359546152 28719092304