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88528381461 = 3613291931669
BaseRepresentation
bin101001001110010110…
…0111110011000010101
322110111200202202000000
41102130230332120111
52422301231201321
6104400330241513
76252546553332
oct1223454763025
9273450682000
1088528381461
11345a9a66323
12151a7b86299
13846ac89390
1443db6a5989
15248208b826
hex149cb3e615

88528381461 has 112 divisors (see below), whose sum is σ = 148726258800. Its totient is φ = 52296523776.

The previous prime is 88528381453. The next prime is 88528381463. The reversal of 88528381461 is 16418382588.

88528381461 is a `hidden beast` number, since 8 + 85 + 28 + 3 + 81 + 461 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 7818980625 + 80709400836 = 88425^2 + 284094^2 .

It is not a de Polignac number, because 88528381461 - 23 = 88528381453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 88528381398 and 88528381407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88528381463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 53041935 + ... + 53043603.

It is an arithmetic number, because the mean of its divisors is an integer number (1327913025).

Almost surely, 288528381461 is an apocalyptic number.

88528381461 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

88528381461 is a deficient number, since it is larger than the sum of its proper divisors (60197877339).

88528381461 is a wasteful number, since it uses less digits than its factorization.

88528381461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922 (or 1907 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 54.

The spelling of 88528381461 in words is "eighty-eight billion, five hundred twenty-eight million, three hundred eighty-one thousand, four hundred sixty-one".

Divisors: 1 3 9 13 27 29 39 81 87 117 193 243 261 351 377 579 729 783 1053 1131 1669 1737 2349 2509 3159 3393 5007 5211 5597 7047 7527 9477 10179 15021 15633 16791 21141 21697 22581 30537 45063 46899 48401 50373 65091 67743 72761 91611 135189 140697 145203 151119 195273 203229 218283 274833 322117 405567 435609 453357 585819 609687 629213 654849 966351 1216701 1306827 1360071 1757457 1829061 1887639 1964547 2899053 3920481 4080213 4187521 5272371 5662917 5893641 8697159 9341393 11761443 12562563 15817113 16988751 17680923 26091477 28024179 35284329 37687689 50966253 53042769 78274431 84072537 113063067 121438109 152898759 234823293 252217611 339189201 364314327 458696277 756652833 1017567603 1092942981 2269958499 3052702809 3278828943 6809875497 9836486829 29509460487 88528381461