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82164510368 = 2523412722843
BaseRepresentation
bin100110010000101100…
…0101110111010100000
321212002012000121000122
41030201120232322200
52321233103312433
6101425034335412
75636053546313
oct1144130567240
9255065017018
1082164510368
11319337a6826
1213b1088a568
1379956bb895
143d9641897a
15220d52a198
hex132162eea0

82164510368 has 48 divisors (see below), whose sum is σ = 172911485376. Its totient is φ = 38337615360.

The previous prime is 82164510361. The next prime is 82164510377. The reversal of 82164510368 is 86301546128.

It is not an unprimeable number, because it can be changed into a prime (82164510361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1331246 + ... + 1391597.

It is an arithmetic number, because the mean of its divisors is an integer number (3602322612).

Almost surely, 282164510368 is an apocalyptic number.

It is an amenable number.

82164510368 is an abundant number, since it is smaller than the sum of its proper divisors (90746975008).

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

82164510368 is a wasteful number, since it uses less digits than its factorization.

82164510368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2722917 (or 2722909 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 82164510368 in words is "eighty-two billion, one hundred sixty-four million, five hundred ten thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 16 23 32 41 46 82 92 164 184 328 368 656 736 943 1312 1886 3772 7544 15088 30176 2722843 5445686 10891372 21782744 43565488 62625389 87130976 111636563 125250778 223273126 250501556 446546252 501003112 893092504 1002006224 1786185008 2004012448 2567640949 3572370016 5135281898 10270563796 20541127592 41082255184 82164510368