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82808168 = 2310351021
BaseRepresentation
bin1001110111110…
…00110101101000
312202211002110012
410323320311220
5132144330133
612114511052
72023600142
oct473706550
9182732405
1082808168
114281a003
1223895488
1314204621
14add7c92
15740ab48
hex4ef8d68

82808168 has 8 divisors (see below), whose sum is σ = 155265330. Its totient is φ = 41404080.

The previous prime is 82808149. The next prime is 82808203. The reversal of 82808168 is 86180828.

It can be written as a sum of positive squares in only one way, i.e., 80964004 + 1844164 = 8998^2 + 1358^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5175503 + ... + 5175518.

Almost surely, 282808168 is an apocalyptic number.

It is an amenable number.

82808168 is a deficient number, since it is larger than the sum of its proper divisors (72457162).

82808168 is a wasteful number, since it uses less digits than its factorization.

82808168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10351027 (or 10351023 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 41.

The square root of 82808168 is about 9099.8993401026. The cubic root of 82808168 is about 435.8707497812.

The spelling of 82808168 in words is "eighty-two million, eight hundred eight thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 10351021 20702042 41404084 82808168