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80880129267 = 3721507736493
BaseRepresentation
bin100101101010011010…
…1001101010011110011
321201202200020021101020
41023110311031103303
52311120303114032
6101053353510523
75562166520100
oct1132465152363
9251680207336
1080880129267
11313347a7243
1213812712443
13781c591b72
143cb3a01aa7
1521858c2b2c
hex12d4d4d4f3

80880129267 has 24 divisors (see below), whose sum is σ = 125458489296. Its totient is φ = 46212884928.

The previous prime is 80880129247. The next prime is 80880129289. The reversal of 80880129267 is 76292108808.

It is a happy number.

It is not a de Polignac number, because 80880129267 - 212 = 80880125171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80880129247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2198073 + ... + 2234565.

It is an arithmetic number, because the mean of its divisors is an integer number (5227437054).

Almost surely, 280880129267 is an apocalyptic number.

80880129267 is a deficient number, since it is larger than the sum of its proper divisors (44578360029).

80880129267 is a wasteful number, since it uses less digits than its factorization.

80880129267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51587 (or 51580 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 51.

The spelling of 80880129267 in words is "eighty billion, eight hundred eighty million, one hundred twenty-nine thousand, two hundred sixty-seven".

Divisors: 1 3 7 21 49 147 15077 36493 45231 105539 109479 255451 316617 738773 766353 1788157 2216319 5364471 550204961 1650614883 3851434727 11554304181 26960043089 80880129267