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28460886 = 235997919
BaseRepresentation
bin110110010010…
…0011101010110
31222112221222220
41230210131112
524241222021
62454003210
7463625226
oct154443526
958487886
1028460886
111507a0a3
129646506
135b8657c
143acc086
152772cc6
hex1b24756

28460886 has 16 divisors (see below), whose sum is σ = 57024000. Its totient is φ = 9469928.

The previous prime is 28460869. The next prime is 28460893. The reversal of 28460886 is 68806482.

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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366 + ... + 7553.

It is an arithmetic number, because the mean of its divisors is an integer number (3564000).

Almost surely, 228460886 is an apocalyptic number.

28460886 is an abundant number, since it is smaller than the sum of its proper divisors (28563114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28460886 is a wasteful number, since it uses less digits than its factorization.

28460886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8523.

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 28460886 is about 5334.8745064903. The cubic root of 28460886 is about 305.3159352778.

The spelling of 28460886 in words is "twenty-eight million, four hundred sixty thousand, eight hundred eighty-six".

Divisors: 1 2 3 6 599 1198 1797 3594 7919 15838 23757 47514 4743481 9486962 14230443 28460886