This site is supported by donations to The OEIS Foundation.
68
From OeisWiki
68 is an integer.
Contents
Membership in core sequences
Even numbers | ..., 62, 64, 66, 68, 70, 72, 74, ... | A005843 |
Composite numbers | ..., 64, 65, 66, 68, 69, 70, 72, ... | A002808 |
Deficient numbers | ..., 64, 65, 67, 68, 69, 71, 73, ... | A005100 |
Numbers that are the sum of two squares | ..., 61, 64, 65, 68, 72, 73, 74, ... | A001481 |
Sequences pertaining to 68
Multiples of 68 | 0, 68, 136, 204, 272, 340, 408, 476, 544, 612, 680, 748, 816, ... | |
Divisors of 68 | 1, 2, 4, 17, 34, 68 | A018269 |
Partitions of 68
There are 3087735 partitions of 68.
The Goldbach representations of 68 are: [FINISH WRITING]
Roots and powers of 68
In the table below, irrational numbers are given truncated to eight decimal places.
TABLE GOES HERE
Values for number theoretic functions with 68 as an argument
TABLE GOES HERE
Factorization of 68 in some quadratic integer rings
In , 68 has the prime factorization of 2 2 × 17. But it has different factorizations in some quadratic integer rings.
TABLE GOES HERE
Representation of 68 in various bases
Base | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
Representation | 1000100 | 2112 | 1010 | 233 | 152 | 125 | 104 | 75 | 68 | 62 | 58 | 53 | 4C | 48 | 44 | 40 | 3E | 3B | 38 |
References
See also
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 |
30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 |
40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 |
1729 |