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80111049528 = 23389251149423
BaseRepresentation
bin100101010011011111…
…1011001101100111000
321122210002001222022110
41022212333121230320
52303031412041103
6100445201452320
75534140454106
oct1124677315470
9248702058273
1080111049528
1130a7a665254
12136390410a0
137729146ab3
143c3d804c76
15213d107403
hex12a6fd9b38

80111049528 has 64 divisors (see below), whose sum is σ = 203336179200. Its totient is φ = 26298272000.

The previous prime is 80111049523. The next prime is 80111049563. The reversal of 80111049528 is 82594011108.

It is a super-4 number, since 4×801110495284 (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80111049521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461425 + ... + 610847.

It is an arithmetic number, because the mean of its divisors is an integer number (3177127800).

Almost surely, 280111049528 is an apocalyptic number.

It is an amenable number.

80111049528 is an abundant number, since it is smaller than the sum of its proper divisors (123225129672).

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

80111049528 is a wasteful number, since it uses less digits than its factorization.

80111049528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149772 (or 149768 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 39.

The spelling of 80111049528 in words is "eighty billion, one hundred eleven million, forty-nine thousand, five hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 24 89 178 251 267 356 502 534 712 753 1004 1068 1506 2008 2136 3012 6024 22339 44678 67017 89356 134034 149423 178712 268068 298846 448269 536136 597692 896538 1195384 1793076 3586152 13298647 26597294 37505173 39895941 53194588 75010346 79791882 106389176 112515519 150020692 159583764 225031038 300041384 319167528 450062076 900124152 3337960397 6675920794 10013881191 13351841588 20027762382 26703683176 40055524764 80111049528