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80839288 = 2310104911
BaseRepresentation
bin1001101000110…
…00001001111000
312122010001122201
410310120021320
5131143324123
612004355544
72001060025
oct464301170
9178101581
1080839288
11416a4832
12230a5bb4
13139953ca
14aa4454c
15716c5ad
hex4d18278

80839288 has 8 divisors (see below), whose sum is σ = 151573680. Its totient is φ = 40419640.

The previous prime is 80839279. The next prime is 80839321. The reversal of 80839288 is 88293808.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5052448 + ... + 5052463.

It is an arithmetic number, because the mean of its divisors is an integer number (18946710).

Almost surely, 280839288 is an apocalyptic number.

It is an amenable number.

80839288 is a deficient number, since it is larger than the sum of its proper divisors (70734392).

80839288 is a wasteful number, since it uses less digits than its factorization.

80839288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10104917 (or 10104913 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 80839288 is about 8991.0671224277. The cubic root of 80839288 is about 432.3885250699.

It can be divided in two parts, 8083 and 9288, that added together give a palindrome (17371).

The spelling of 80839288 in words is "eighty million, eight hundred thirty-nine thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 10104911 20209822 40419644 80839288