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82111876080 = 24351326317909
BaseRepresentation
bin100110001111000111…
…1111100101111110000
321211221111222111100120
41030132033330233300
52321131120013310
6101415514250240
75634544300503
oct1143617745760
9254844874316
1082111876080
1131907016913
1213ab7126980
137987820430
143d8d43713a
152208aceb70
hex131e3fcbf0

82111876080 has 80 divisors (see below), whose sum is σ = 274127350560. Its totient is φ = 20212153344.

The previous prime is 82111876073. The next prime is 82111876097. The reversal of 82111876080 is 8067811128.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13155835 + ... + 13162074.

It is an arithmetic number, because the mean of its divisors is an integer number (3426591882).

Almost surely, 282111876080 is an apocalyptic number.

82111876080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

82111876080 is an abundant number, since it is smaller than the sum of its proper divisors (192015474480).

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

82111876080 is a wasteful number, since it uses less digits than its factorization.

82111876080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26317938 (or 26317932 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 42.

The spelling of 82111876080 in words is "eighty-two billion, one hundred eleven million, eight hundred seventy-six thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 39 40 48 52 60 65 78 80 104 120 130 156 195 208 240 260 312 390 520 624 780 1040 1560 3120 26317909 52635818 78953727 105271636 131589545 157907454 210543272 263179090 315814908 342132817 394768635 421086544 526358180 631629816 684265634 789537270 1026398451 1052716360 1263259632 1368531268 1579074540 1710664085 2052796902 2105432720 2737062536 3158149080 3421328170 4105593804 5131992255 5474125072 6316298160 6842656340 8211187608 10263984510 13685312680 16422375216 20527969020 27370625360 41055938040 82111876080