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83449764289 = 892274130563
BaseRepresentation
bin100110110110111111…
…1100101100111000001
321222101202110020221201
41031231333211213001
52331401114424124
6102200350021201
76012651202303
oct1155577454701
9258352406851
1083449764289
1132433242051
121420b1a7801
137b3ba62968
144078dbb973
1522862a6144
hex136dfe59c1

83449764289 has 8 divisors (see below), whose sum is σ = 84759173280. Its totient is φ = 82148617056.

The previous prime is 83449764263. The next prime is 83449764317. The reversal of 83449764289 is 98246794438.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83449764289 - 213 = 83449756097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83449764289.

It is not an unprimeable number, because it can be changed into a prime (83449764239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2045079 + ... + 2085484.

It is an arithmetic number, because the mean of its divisors is an integer number (10594896660).

Almost surely, 283449764289 is an apocalyptic number.

83449764289 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

83449764289 is a deficient number, since it is larger than the sum of its proper divisors (1309408991).

83449764289 is a wasteful number, since it uses less digits than its factorization.

83449764289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4130879.

The product of its digits is 83607552, while the sum is 64.

The spelling of 83449764289 in words is "eighty-three billion, four hundred forty-nine million, seven hundred sixty-four thousand, two hundred eighty-nine".

Divisors: 1 89 227 20203 4130563 367620107 937637801 83449764289