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68022 = 2323779
BaseRepresentation
bin10000100110110110
310110022100
4100212312
54134042
61242530
7402213
oct204666
9113270
1068022
1147119
1233446
1324c66
141ab0a
151524c
hex109b6

68022 has 12 divisors (see below), whose sum is σ = 147420. Its totient is φ = 22668.

The previous prime is 67993. The next prime is 68023. The reversal of 68022 is 22086.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 3779 = 68022 / (6 + 8 + 0 + 2 + 2).

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 67986 and 68004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68023) by changing a digit.

68022 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 5 ways as a sum of consecutive naturals, for example, 1872 + ... + 1907.

It is an arithmetic number, because the mean of its divisors is an integer number (12285).

268022 is an apocalyptic number.

68022 is an abundant number, since it is smaller than the sum of its proper divisors (79398).

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

68022 is a wasteful number, since it uses less digits than its factorization.

68022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787 (or 3784 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 68022 is about 260.8102758712. The cubic root of 68022 is about 40.8209523295.

The spelling of 68022 in words is "sixty-eight thousand, twenty-two".

Divisors: 1 2 3 6 9 18 3779 7558 11337 22674 34011 68022