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82105182 = 2324561399
BaseRepresentation
bin1001110010011…
…01001101011110
312201111101010200
410321031031132
5132004331212
612051444330
72014611465
oct471151536
9181441120
1082105182
1142389925
12235b66a6
1314019663
14ac939dc
15731c6dc
hex4e4d35e

82105182 has 12 divisors (see below), whose sum is σ = 177894600. Its totient is φ = 27368388.

The previous prime is 82105169. The next prime is 82105187. The reversal of 82105182 is 28150128.

It is a super-2 number, since 2×821051822 = 13482521822506248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82105187) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2280682 + ... + 2280717.

It is an arithmetic number, because the mean of its divisors is an integer number (14824550).

Almost surely, 282105182 is an apocalyptic number.

82105182 is an abundant number, since it is smaller than the sum of its proper divisors (95789418).

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

82105182 is a wasteful number, since it uses less digits than its factorization.

82105182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4561407 (or 4561404 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 82105182 is about 9061.1909813225. The cubic root of 82105182 is about 434.6338258160.

The spelling of 82105182 in words is "eighty-two million, one hundred five thousand, one hundred eighty-two".

Divisors: 1 2 3 6 9 18 4561399 9122798 13684197 27368394 41052591 82105182