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30032312 = 2319210399
BaseRepresentation
bin111001010010…
…0000110111000
32002111210120212
41302210012320
530142013222
62551410252
7513161522
oct162440670
962453525
1030032312
1115a527a2
12a083988
1362b68cb
143dbaa12
1529836e2
hex1ca41b8

30032312 has 24 divisors (see below), whose sum is σ = 59436000. Its totient is φ = 14224464.

The previous prime is 30032309. The next prime is 30032323. The reversal of 30032312 is 21323003.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 2312 + ... + 8087.

It is an arithmetic number, because the mean of its divisors is an integer number (2476500).

Almost surely, 230032312 is an apocalyptic number.

It is an amenable number.

30032312 is a deficient number, since it is larger than the sum of its proper divisors (29403688).

30032312 is a wasteful number, since it uses less digits than its factorization.

30032312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10443 (or 10420 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 30032312 is about 5480.1744497780. The cubic root of 30032312 is about 310.8347671200.

Adding to 30032312 its reverse (21323003), we get a palindrome (51355315).

The spelling of 30032312 in words is "thirty million, thirty-two thousand, three hundred twelve".

Divisors: 1 2 4 8 19 38 76 152 361 722 1444 2888 10399 20798 41596 83192 197581 395162 790324 1580648 3754039 7508078 15016156 30032312