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68826186 = 23411132971
BaseRepresentation
bin1000001101000…
…11010001001010
311210111201210000
410012203101022
5120104414221
610455103430
71464004302
oct406432112
9153451700
1068826186
113593a150
121b071b76
131134a470
1491d8602
156097e26
hex41a344a

68826186 has 80 divisors (see below), whose sum is σ = 181244448. Its totient is φ = 19245600.

The previous prime is 68826161. The next prime is 68826209. The reversal of 68826186 is 68162886.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21681 + ... + 24651.

Almost surely, 268826186 is an apocalyptic number.

68826186 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 68826186, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90622224).

68826186 is an abundant number, since it is smaller than the sum of its proper divisors (112418262).

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

68826186 is a wasteful number, since it uses less digits than its factorization.

68826186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3009 (or 3000 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 68826186 is about 8296.1548924788. The cubic root of 68826186 is about 409.8119026145.

The spelling of 68826186 in words is "sixty-eight million, eight hundred twenty-six thousand, one hundred eighty-six".

Divisors: 1 2 3 6 9 11 13 18 22 26 27 33 39 54 66 78 81 99 117 143 162 198 234 286 297 351 429 594 702 858 891 1053 1287 1782 2106 2574 2971 3861 5942 7722 8913 11583 17826 23166 26739 32681 38623 53478 65362 77246 80217 98043 115869 160434 196086 231738 240651 294129 347607 424853 481302 588258 695214 849706 882387 1042821 1274559 1764774 2085642 2549118 2647161 3128463 3823677 5294322 6256926 7647354 11471031 22942062 34413093 68826186