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68204332 = 2274751827
BaseRepresentation
bin1000001000010…
…11011100101100
311202100010202101
410010023130230
5114430014312
610433504444
71455504310
oct404133454
9152303671
1068204332
1135554a19
121aa12124
13111903c1
1490b5b40
155ec3a57
hex410b72c

68204332 has 24 divisors (see below), whose sum is σ = 139313664. Its totient is φ = 28607952.

The previous prime is 68204329. The next prime is 68204333. The reversal of 68204332 is 23340286.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 68204332.

It is not an unprimeable number, because it can be changed into a prime (68204333) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 24598 + ... + 27229.

It is an arithmetic number, because the mean of its divisors is an integer number (5804736).

Almost surely, 268204332 is an apocalyptic number.

It is an amenable number.

68204332 is an abundant number, since it is smaller than the sum of its proper divisors (71109332).

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

68204332 is a wasteful number, since it uses less digits than its factorization.

68204332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51885 (or 51883 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 68204332 is about 8258.5914053185. The cubic root of 68204332 is about 408.5739311584.

The spelling of 68204332 in words is "sixty-eight million, two hundred four thousand, three hundred thirty-two".

Divisors: 1 2 4 7 14 28 47 94 188 329 658 1316 51827 103654 207308 362789 725578 1451156 2435869 4871738 9743476 17051083 34102166 68204332