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67068 = 223623
BaseRepresentation
bin10000010111111100
310102000000
4100113330
54121233
61234300
7366351
oct202774
9112000
1067068
1146431
1232990
13246b1
141a628
1514d13
hex105fc

67068 has 42 divisors (see below), whose sum is σ = 183624. Its totient is φ = 21384.

The previous prime is 67061. The next prime is 67073. The reversal of 67068 is 86076.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67061) by changing a digit.

67068 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 2905 + ... + 2927.

It is an arithmetic number, because the mean of its divisors is an integer number (4372).

267068 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 67068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91812).

67068 is an abundant number, since it is smaller than the sum of its proper divisors (116556).

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

67068 is a wasteful number, since it uses less digits than its factorization.

67068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45 (or 28 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 67068 is about 258.9749022589. The cubic root of 67068 is about 40.6292169193.

The spelling of 67068 in words is "sixty-seven thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 23 27 36 46 54 69 81 92 108 138 162 207 243 276 324 414 486 621 729 828 972 1242 1458 1863 2484 2916 3726 5589 7452 11178 16767 22356 33534 67068