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33008985 = 3351719757
BaseRepresentation
bin111110111101…
…0110101011001
32022010000211000
41331322311121
531422241420
63135255213
7550400052
oct175726531
968100730
1033008985
11176a6159
12b07a509
136ab9759
144553729
152d70690
hex1f7ad59

33008985 has 64 divisors (see below), whose sum is σ = 65491200. Its totient is φ = 15676416.

The previous prime is 33008981. The next prime is 33008999. The reversal of 33008985 is 58980033.

It is not a de Polignac number, because 33008985 - 22 = 33008981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (33008981) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 43227 + ... + 43983.

It is an arithmetic number, because the mean of its divisors is an integer number (1023300).

Almost surely, 233008985 is an apocalyptic number.

It is an amenable number.

33008985 is a deficient number, since it is larger than the sum of its proper divisors (32482215).

33008985 is a wasteful number, since it uses less digits than its factorization.

33008985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807 (or 801 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 33008985 is about 5745.3446371824. The cubic root of 33008985 is about 320.7825411620.

The spelling of 33008985 in words is "thirty-three million, eight thousand, nine hundred eighty-five".

Divisors: 1 3 5 9 15 17 19 27 45 51 57 85 95 135 153 171 255 285 323 459 513 757 765 855 969 1615 2271 2295 2565 2907 3785 4845 6813 8721 11355 12869 14383 14535 20439 34065 38607 43149 43605 64345 71915 102195 115821 129447 193035 215745 244511 347463 388341 579105 647235 733533 1222555 1737315 1941705 2200599 3667665 6601797 11002995 33008985