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82022382 = 23413172979
BaseRepresentation
bin1001110001110…
…00111111101110
312201100011120000
410320320333232
5131444204012
612050005130
72014115211
oct470707756
9181304500
1082022382
11423326a2
12235767a6
1313cbaa70
14ac71778
157302ddc
hex4e38fee

82022382 has 160 divisors (see below), whose sum is σ = 219542400. Its totient is φ = 22643712.

The previous prime is 82022363. The next prime is 82022383. The reversal of 82022382 is 28322028.

It is a super-2 number, since 2×820223822 = 13455342297907848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82022383) 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 79 ways as a sum of consecutive naturals, for example, 1038219 + ... + 1038297.

It is an arithmetic number, because the mean of its divisors is an integer number (1372140).

Almost surely, 282022382 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82022382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109771200).

82022382 is an abundant number, since it is smaller than the sum of its proper divisors (137520018).

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

82022382 is a wasteful number, since it uses less digits than its factorization.

82022382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 82022382 is about 9056.6208930263. The cubic root of 82022382 is about 434.4876726983.

The spelling of 82022382 in words is "eighty-two million, twenty-two thousand, three hundred eighty-two".

Divisors: 1 2 3 6 9 13 17 18 26 27 29 34 39 51 54 58 78 79 81 87 102 117 153 158 162 174 221 234 237 261 306 351 377 442 459 474 493 522 663 702 711 754 783 918 986 1027 1053 1131 1326 1343 1377 1422 1479 1566 1989 2054 2106 2133 2262 2291 2349 2686 2754 2958 3081 3393 3978 4029 4266 4437 4582 4698 5967 6162 6399 6409 6786 6873 8058 8874 9243 10179 11934 12087 12798 12818 13311 13746 17459 17901 18486 19227 20358 20619 24174 26622 27729 29783 30537 34918 35802 36261 38454 38947 39933 41238 52377 55458 57681 59566 61074 61857 72522 77894 79866 83187 89349 104754 108783 115362 116841 123714 157131 166374 173043 178698 185571 217566 233682 268047 314262 346086 350523 371142 471393 506311 519129 536094 701046 804141 942786 1012622 1038258 1051569 1414179 1518933 1608282 2103138 2412423 2828358 3037866 3154707 4556799 4824846 6309414 9113598 13670397 27340794 41011191 82022382