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68012 = 2272347
BaseRepresentation
bin10000100110101100
310110021222
4100212230
54134022
61242512
7402200
oct204654
9113258
1068012
114710a
1233438
1324c59
141ab00
1515242
hex109ac

68012 has 18 divisors (see below), whose sum is σ = 138852. Its totient is φ = 29064.

The previous prime is 67993. The next prime is 68023. The reversal of 68012 is 21086.

It is an unprimeable number.

68012 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23 + ... + 369.

It is an arithmetic number, because the mean of its divisors is an integer number (7714).

268012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69426).

68012 is an abundant number, since it is smaller than the sum of its proper divisors (70840).

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

68012 is a wasteful number, since it uses less digits than its factorization.

68012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 68012 is about 260.7911041428. The cubic root of 68012 is about 40.8189518515.

Adding to 68012 its reverse (21086), we get a palindrome (89098).

The spelling of 68012 in words is "sixty-eight thousand, twelve".

Divisors: 1 2 4 7 14 28 49 98 196 347 694 1388 2429 4858 9716 17003 34006 68012