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80375586666 = 23291401132969
BaseRepresentation
bin100101011011011000…
…0100001111101101010
321200110111211212001020
41022312300201331222
52304102122233131
6100531331433310
75543532133314
oct1126660417552
9250414755036
1080375586666
11310a5a17991
12136b1755836
13776bba924b
143c669c67b4
15215645d996
hex12b6c21f6a

80375586666 has 32 divisors (see below), whose sum is σ = 166311230400. Its totient is φ = 25865374080.

The previous prime is 80375586653. The next prime is 80375586673. The reversal of 80375586666 is 66668557308.

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 15 ways as a sum of consecutive naturals, for example, 2421430 + ... + 2454398.

It is an arithmetic number, because the mean of its divisors is an integer number (5197225950).

Almost surely, 280375586666 is an apocalyptic number.

80375586666 is an abundant number, since it is smaller than the sum of its proper divisors (85935643734).

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

80375586666 is a wasteful number, since it uses less digits than its factorization.

80375586666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47014.

The product of its (nonzero) digits is 43545600, while the sum is 60.

The spelling of 80375586666 in words is "eighty billion, three hundred seventy-five million, five hundred eighty-six thousand, six hundred sixty-six".

Divisors: 1 2 3 6 29 58 87 174 14011 28022 32969 42033 65938 84066 98907 197814 406319 812638 956101 1218957 1912202 2437914 2868303 5736606 461928659 923857318 1385785977 2771571954 13395931111 26791862222 40187793333 80375586666