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80819052 = 2236734921
BaseRepresentation
bin1001101000100…
…11001101101100
312122002000220020
410310103031230
5131142202202
612004122140
72000644026
oct464231554
9178060806
1080819052
1141690606
1223096350
1313989132
14aa3b016
1571665bc
hex4d1336c

80819052 has 12 divisors (see below), whose sum is σ = 188577816. Its totient is φ = 26939680.

The previous prime is 80819021. The next prime is 80819093. The reversal of 80819052 is 25091808.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3367449 + ... + 3367472.

It is an arithmetic number, because the mean of its divisors is an integer number (15714818).

Almost surely, 280819052 is an apocalyptic number.

It is an amenable number.

80819052 is an abundant number, since it is smaller than the sum of its proper divisors (107758764).

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

80819052 is a wasteful number, since it uses less digits than its factorization.

80819052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6734928 (or 6734926 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 80819052 is about 8989.9417128255. The cubic root of 80819052 is about 432.3524430087.

The spelling of 80819052 in words is "eighty million, eight hundred nineteen thousand, fifty-two".

Divisors: 1 2 3 4 6 12 6734921 13469842 20204763 26939684 40409526 80819052