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28468286 = 2711184859
BaseRepresentation
bin110110010011…
…0010000111110
31222120100010222
41230212100332
524241441121
62454101342
7463655630
oct154462076
958510128
1028468286
1115084710
12964a852
135b89a52
143ad0a50
1527750ab
hex1b2643e

28468286 has 16 divisors (see below), whose sum is σ = 53239680. Its totient is φ = 11091480.

The previous prime is 28468283. The next prime is 28468301. The reversal of 28468286 is 68286482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28468283) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 92276 + ... + 92583.

It is an arithmetic number, because the mean of its divisors is an integer number (3327480).

Almost surely, 228468286 is an apocalyptic number.

28468286 is a deficient number, since it is larger than the sum of its proper divisors (24771394).

28468286 is a wasteful number, since it uses less digits than its factorization.

28468286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184879.

The product of its digits is 294912, while the sum is 44.

The square root of 28468286 is about 5335.5680109994. The cubic root of 28468286 is about 305.3423943058.

The spelling of 28468286 in words is "twenty-eight million, four hundred sixty-eight thousand, two hundred eighty-six".

Divisors: 1 2 7 11 14 22 77 154 184859 369718 1294013 2033449 2588026 4066898 14234143 28468286