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28114790 = 2511255589
BaseRepresentation
bin110101100111…
…1111101100110
31221220101020112
41223033331212
524144133130
62442333022
7460654214
oct153177546
957811215
1028114790
1114963070
1294ba172
135a94b92
143a3bcb4
152705495
hex1acff66

28114790 has 16 divisors (see below), whose sum is σ = 55207440. Its totient is φ = 10223520.

The previous prime is 28114747. The next prime is 28114811. The reversal of 28114790 is 9741182.

It is a Curzon number.

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, 127685 + ... + 127904.

It is an arithmetic number, because the mean of its divisors is an integer number (3450465).

Almost surely, 228114790 is an apocalyptic number.

28114790 is a deficient number, since it is larger than the sum of its proper divisors (27092650).

28114790 is a wasteful number, since it uses less digits than its factorization.

28114790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255607.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 28114790 is about 5302.3381634898. The cubic root of 28114790 is about 304.0732957500.

The spelling of 28114790 in words is "twenty-eight million, one hundred fourteen thousand, seven hundred ninety".

Divisors: 1 2 5 10 11 22 55 110 255589 511178 1277945 2555890 2811479 5622958 14057395 28114790