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28386116 = 22112223263
BaseRepresentation
bin110110001001…
…0001101000100
31222102011102122
41230102031010
524231323431
62452225112
7463164233
oct154221504
958364378
1028386116
1115028a00
12960b198
135b5b525
143aacb1a
15275aa7b
hex1b12344

28386116 has 36 divisors (see below), whose sum is σ = 55055616. Its totient is φ = 12796080.

The previous prime is 28386109. The next prime is 28386121. The reversal of 28386116 is 61168382.

Its product of digits (13824) is a multiple of the sum of its prime factors (512).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107801 + ... + 108063.

Almost surely, 228386116 is an apocalyptic number.

It is an amenable number.

28386116 is a deficient number, since it is larger than the sum of its proper divisors (26669500).

28386116 is a wasteful number, since it uses less digits than its factorization.

28386116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512 (or 499 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 28386116 is about 5327.8622354562. The cubic root of 28386116 is about 305.0483341835.

The spelling of 28386116 in words is "twenty-eight million, three hundred eighty-six thousand, one hundred sixteen".

Divisors: 1 2 4 11 22 44 121 223 242 263 446 484 526 892 1052 2453 2893 4906 5786 9812 11572 26983 31823 53966 58649 63646 107932 117298 127292 234596 645139 1290278 2580556 7096529 14193058 28386116