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80190079885 = 5734094871103
BaseRepresentation
bin100101010101110110…
…0111000001110001101
321122222120210010120201
41022223230320032031
52303212130024020
6100501103413501
75536120301236
oct1125354701615
9248876703521
1080190079885
11310102339a3
121365b5b4291
13773c627a16
143c4a0d808d
152145018a0a
hex12abb3838d

80190079885 has 32 divisors (see below), whose sum is σ = 98074414080. Its totient is φ = 62931852288.

The previous prime is 80190079877. The next prime is 80190079927. The reversal of 80190079885 is 58897009108.

It is a cyclic number.

It is not a de Polignac number, because 80190079885 - 23 = 80190079877 is a prime.

It is a super-2 number, since 2×801900798852 (a number of 23 digits) contains 22 as substring.

It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 72701244 + ... + 72702346.

It is an arithmetic number, because the mean of its divisors is an integer number (3064825440).

Almost surely, 280190079885 is an apocalyptic number.

It is an amenable number.

80190079885 is a deficient number, since it is larger than the sum of its proper divisors (17884334195).

80190079885 is a wasteful number, since it uses less digits than its factorization.

80190079885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077.

The product of its (nonzero) digits is 1451520, while the sum is 55.

The spelling of 80190079885 in words is "eighty billion, one hundred ninety million, seventy-nine thousand, eight hundred eighty-five".

Divisors: 1 5 73 365 409 487 1103 2045 2435 5515 29857 35551 80519 149285 177755 199183 402595 451127 537161 995915 2255635 2685805 14540359 32932271 39212753 72701795 164661355 196063765 219698849 1098494245 16038015977 80190079885