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82395768 = 233713311217
BaseRepresentation
bin1001110100101…
…00001001111000
312202001010202010
410322110021320
5132043131033
612102005520
72020231620
oct472241170
9182033663
1082395768
1142568184
12237168a0
13140bb9c0
14ad2b880
157378863
hex4e94278

82395768 has 128 divisors (see below), whose sum is σ = 261918720. Its totient is φ = 21012480.

The previous prime is 82395763. The next prime is 82395769. The reversal of 82395768 is 86759328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82395763) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67096 + ... + 68312.

It is an arithmetic number, because the mean of its divisors is an integer number (2046240).

Almost surely, 282395768 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 82395768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130959360).

82395768 is an abundant number, since it is smaller than the sum of its proper divisors (179522952).

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

82395768 is a wasteful number, since it uses less digits than its factorization.

82395768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277 (or 1273 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The square root of 82395768 is about 9077.2114660836. The cubic root of 82395768 is about 435.1459729419.

The spelling of 82395768 in words is "eighty-two million, three hundred ninety-five thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 12 13 14 21 24 26 28 31 39 42 52 56 62 78 84 91 93 104 124 156 168 182 186 217 248 273 312 364 372 403 434 546 651 728 744 806 868 1092 1209 1217 1302 1612 1736 2184 2418 2434 2604 2821 3224 3651 4836 4868 5208 5642 7302 8463 8519 9672 9736 11284 14604 15821 16926 17038 22568 25557 29208 31642 33852 34076 37727 47463 51114 63284 67704 68152 75454 94926 102228 110747 113181 126568 150908 189852 204456 221494 226362 264089 301816 332241 379704 442988 452724 490451 528178 664482 792267 885976 905448 980902 1056356 1328964 1471353 1584534 1961804 2112712 2657928 2942706 3169068 3433157 3923608 5885412 6338136 6866314 10299471 11770824 13732628 20598942 27465256 41197884 82395768