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82705168344 = 23343121765851
BaseRepresentation
bin100110100000110011…
…1001011011111011000
321220110212100212100010
41031001213023133120
52323340010341334
6101554430441520
75655340221531
oct1150147133730
9256425325303
1082705168344
1132090a030a7
12140419632a0
137a5070ab46
144008155688
152240c250e9
hex13419cb7d8

82705168344 has 64 divisors (see below), whose sum is σ = 211748423040. Its totient is φ = 26904729600.

The previous prime is 82705168331. The next prime is 82705168349. The reversal of 82705168344 is 44386150728.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 82705168293 and 82705168302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82705168349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1223019 + ... + 1288869.

It is an arithmetic number, because the mean of its divisors is an integer number (3308569110).

Almost surely, 282705168344 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 82705168344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105874211520).

82705168344 is an abundant number, since it is smaller than the sum of its proper divisors (129043254696).

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

82705168344 is a wasteful number, since it uses less digits than its factorization.

82705168344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67120 (or 67116 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 82705168344 in words is "eighty-two billion, seven hundred five million, one hundred sixty-eight thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 12 24 43 86 129 172 258 344 516 1032 1217 2434 3651 4868 7302 9736 14604 29208 52331 65851 104662 131702 156993 197553 209324 263404 313986 395106 418648 526808 627972 790212 1255944 1580424 2831593 5663186 8494779 11326372 16989558 22652744 33979116 67958232 80140667 160281334 240422001 320562668 480844002 641125336 961688004 1923376008 3446048681 6892097362 10338146043 13784194724 20676292086 27568389448 41352584172 82705168344