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68447212 = 22154911047
BaseRepresentation
bin1000001010001…
…10101111101100
311202210110220221
410011012233230
5120010302322
610443021124
71460535361
oct405065754
9152713827
1068447212
1135700449
121ab0a7a4
1311246b12
14913a468
1560209c7
hex4146bec

68447212 has 12 divisors (see below), whose sum is σ = 119870800. Its totient is φ = 34198416.

The previous prime is 68447207. The next prime is 68447233. The reversal of 68447212 is 21274486.

It is a happy number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 673 + ... + 11719.

Almost surely, 268447212 is an apocalyptic number.

It is an amenable number.

68447212 is a deficient number, since it is larger than the sum of its proper divisors (51423588).

68447212 is a wasteful number, since it uses less digits than its factorization.

68447212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12600 (or 12598 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 68447212 is about 8273.2830242897. The cubic root of 68447212 is about 409.0583425957.

The spelling of 68447212 in words is "sixty-eight million, four hundred forty-seven thousand, two hundred twelve".

Divisors: 1 2 4 1549 3098 6196 11047 22094 44188 17111803 34223606 68447212