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80502131066 = 27229191148303
BaseRepresentation
bin100101011111001001…
…1010000100101111010
321200210022221222022212
41022332103100211322
52304332021143231
6100552052015122
75546626552400
oct1127623204572
9250708858285
1080502131066
1131160399635
12137280014a2
13778c184ba6
143c79727470
15216260842b
hex12be4d097a

80502131066 has 48 divisors (see below), whose sum is σ = 146073507840. Its totient is φ = 33136598880.

The previous prime is 80502131033. The next prime is 80502131071. The reversal of 80502131066 is 66013120508.

It is a happy number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 468671 + ... + 616973.

It is an arithmetic number, because the mean of its divisors is an integer number (3043198080).

Almost surely, 280502131066 is an apocalyptic number.

80502131066 is a deficient number, since it is larger than the sum of its proper divisors (65571376774).

80502131066 is a wasteful number, since it uses less digits than its factorization.

80502131066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148539 (or 148532 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 80502131066 in words is "eighty billion, five hundred two million, one hundred thirty-one thousand, sixty-six".

Divisors: 1 2 7 14 29 49 58 98 191 203 382 406 1337 1421 2674 2842 5539 9359 11078 18718 38773 77546 148303 271411 296606 542822 1038121 2076242 4300787 7266847 8601574 14533694 28325873 30105509 56651746 60211018 198281111 210738563 396562222 421477126 821450317 1387967777 1642900634 2775935554 5750152219 11500304438 40251065533 80502131066