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80869373109 = 337427880281
BaseRepresentation
bin100101101010000110…
…0001011010010110101
321201201220222210201000
41023110030023102311
52311110024414414
6101052331153513
75562006221040
oct1132414132265
9251656883630
1080869373109
113132971aa58
121380aba5899
13781a297085
143cb2401c57
15218499ab09
hex12d430b4b5

80869373109 has 16 divisors (see below), whose sum is σ = 136921690240. Its totient is φ = 46211070240.

The previous prime is 80869373083. The next prime is 80869373111. The reversal of 80869373109 is 90137396808.

It is not a de Polignac number, because 80869373109 - 215 = 80869340341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80869373149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213939952 + ... + 213940329.

It is an arithmetic number, because the mean of its divisors is an integer number (8557605640).

Almost surely, 280869373109 is an apocalyptic number.

It is an amenable number.

80869373109 is a deficient number, since it is larger than the sum of its proper divisors (56052317131).

80869373109 is a wasteful number, since it uses less digits than its factorization.

80869373109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427880297 (or 427880291 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 80869373109 in words is "eighty billion, eight hundred sixty-nine million, three hundred seventy-three thousand, one hundred nine".

Divisors: 1 3 7 9 21 27 63 189 427880281 1283640843 2995161967 3850922529 8985485901 11552767587 26956457703 80869373109