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28080118 = 2114329683
BaseRepresentation
bin110101100011…
…1011111110110
31221211121200101
41223013133312
524142030433
62441504314
7460451143
oct153073766
957747611
1028080118
111493a010
1294a209a
135a82171
143a2d3ca
1526ea07d
hex1ac77f6

28080118 has 16 divisors (see below), whose sum is σ = 47019456. Its totient is φ = 12466440.

The previous prime is 28080097. The next prime is 28080133. The reversal of 28080118 is 81108082.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13896 + ... + 15787.

It is an arithmetic number, because the mean of its divisors is an integer number (2938716).

Almost surely, 228080118 is an apocalyptic number.

28080118 is a deficient number, since it is larger than the sum of its proper divisors (18939338).

28080118 is a wasteful number, since it uses less digits than its factorization.

28080118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29739.

The product of its (nonzero) digits is 1024, while the sum is 28.

The square root of 28080118 is about 5299.0676538425. The cubic root of 28080118 is about 303.9482469033.

The spelling of 28080118 in words is "twenty-eight million, eighty thousand, one hundred eighteen".

Divisors: 1 2 11 22 43 86 473 946 29683 59366 326513 653026 1276369 2552738 14040059 28080118