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68228 = 2237461
BaseRepresentation
bin10000101010000100
310110120222
4100222010
54140403
61243512
7402626
oct205204
9113528
1068228
1147296
1233598
1325094
141ac16
1515338
hex10a84

68228 has 12 divisors (see below), whose sum is σ = 122892. Its totient is φ = 33120.

The previous prime is 68227. The next prime is 68239. The reversal of 68228 is 82286.

It can be written as a sum of positive squares in 2 ways, for example, as 43264 + 24964 = 208^2 + 158^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68197 and 68206.

It is not an unprimeable number, because it can be changed into a prime (68227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83 + ... + 378.

It is an arithmetic number, because the mean of its divisors is an integer number (10241).

268228 is an apocalyptic number.

It is an amenable number.

68228 is a deficient number, since it is larger than the sum of its proper divisors (54664).

68228 is a wasteful number, since it uses less digits than its factorization.

68228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502 (or 500 counting only the distinct ones).

The product of its digits is 1536, while the sum is 26.

The square root of 68228 is about 261.2049004134. The cubic root of 68228 is about 40.8621186268.

The spelling of 68228 in words is "sixty-eight thousand, two hundred twenty-eight".

Divisors: 1 2 4 37 74 148 461 922 1844 17057 34114 68228