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28456074 = 2322636011
BaseRepresentation
bin110110010001…
…1010010001010
31222112201101200
41230203102022
524241043244
62453525030
7463605213
oct154432212
958481350
1028456074
1115076519
129643776
135b8431a
143aca40a
152771669
hex1b2348a

28456074 has 24 divisors (see below), whose sum is σ = 61899552. Its totient is φ = 9447720.

The previous prime is 28456063. The next prime is 28456081. The reversal of 28456074 is 47065482.

28456074 is a `hidden beast` number, since 2 + 8 + 45 + 607 + 4 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1729 + ... + 7739.

It is an arithmetic number, because the mean of its divisors is an integer number (2579148).

Almost surely, 228456074 is an apocalyptic number.

28456074 is an abundant number, since it is smaller than the sum of its proper divisors (33443478).

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

28456074 is a wasteful number, since it uses less digits than its factorization.

28456074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6282 (or 6279 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 28456074 is about 5334.4234927497. The cubic root of 28456074 is about 305.2987272976.

The spelling of 28456074 in words is "twenty-eight million, four hundred fifty-six thousand, seventy-four".

Divisors: 1 2 3 6 9 18 263 526 789 1578 2367 4734 6011 12022 18033 36066 54099 108198 1580893 3161786 4742679 9485358 14228037 28456074