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288969969882 = 231123377337019
BaseRepresentation
bin1000011010001111111…
…00111101000011011010
31000121212210222102221010
410031013330331003122
514213302303014012
6340430113154350
726606642134206
oct4150774750332
91017783872833
10288969969882
11101608018430
124800755b9b6
132133291b679
14ddb4295b06
1577b418bc3c
hex4347f3d0da

288969969882 has 128 divisors (see below), whose sum is σ = 676691159040. Its totient is φ = 81372867840.

The previous prime is 288969969853. The next prime is 288969969941.

288969969882 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 288969969795 and 288969969804.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41166169 + ... + 41173187.

It is an arithmetic number, because the mean of its divisors is an integer number (5286649680).

Almost surely, 2288969969882 is an apocalyptic number.

288969969882 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 288969969882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338345579520).

288969969882 is an abundant number, since it is smaller than the sum of its proper divisors (387721189158).

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

288969969882 is a wasteful number, since it uses less digits than its factorization.

288969969882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7828.

The product of its digits is 3869835264, while the sum is 84.

The spelling of 288969969882 in words is "two hundred eighty-eight billion, nine hundred sixty-nine million, nine hundred sixty-nine thousand, eight hundred eighty-two".

Divisors: 1 2 3 6 11 22 23 33 37 46 66 69 74 111 138 222 253 407 506 733 759 814 851 1221 1466 1518 1702 2199 2442 2553 4398 5106 7019 8063 9361 14038 16126 16859 18722 21057 24189 27121 28083 33718 42114 48378 50577 54242 56166 77209 81363 101154 154418 161437 162726 185449 231627 259703 298331 322874 370898 463254 484311 519406 556347 596662 623783 779109 894993 968622 1112694 1247566 1558218 1775807 1789986 1871349 2856733 3551614 3742698 5144927 5327421 5713466 5973169 6861613 8570199 10289854 10654842 11946338 13723226 15434781 17140398 17919507 20584839 30869562 35839014 41169678 56594197 65704859 113188394 118333321 131409718 169782591 190362299 197114577 236666642 339565182 354999963 380724598 394229154 571086897 709999926 1142173794 1301666531 2093985289 2603333062 3904999593 4187970578 4378332877 6281955867 7809999186 8756665754 12563911734 13134998631 26269997262 48161661647 96323323294 144484984941 288969969882