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80943094450 = 2521618861889
BaseRepresentation
bin100101101100010010…
…1011001101010110010
321201221001201020101001
41023120211121222302
52311232413010300
6101103523232214
75563562644051
oct1133045315262
9251831636331
1080943094450
11313672a2989
121382b81866a
13782c63967a
143cbc112398
15218b1ae16a
hex12d8959ab2

80943094450 has 12 divisors (see below), whose sum is σ = 150554155770. Its totient is φ = 32377237760.

The previous prime is 80943094447. The next prime is 80943094451. The reversal of 80943094450 is 5449034908.

It can be written as a sum of positive squares in 3 ways, for example, as 60244229809 + 20698864641 = 245447^2 + 143871^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80943094450.

It is not an unprimeable number, because it can be changed into a prime (80943094451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 809430895 + ... + 809430994.

Almost surely, 280943094450 is an apocalyptic number.

80943094450 is a deficient number, since it is larger than the sum of its proper divisors (69611061320).

80943094450 is a wasteful number, since it uses less digits than its factorization.

80943094450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618861901 (or 1618861896 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 80943094450 in words is "eighty billion, nine hundred forty-three million, ninety-four thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 1618861889 3237723778 8094309445 16188618890 40471547225 80943094450