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39
From OeisWiki
39 is an integer.
Contents
- 1 Membership in core sequences
- 2 Sequences pertaining to 39
- 3 Partitions of 39
- 4 Roots and powers of 39
- 5 Logarithms and 39th powers
- 6 Values for number theoretic functions with 39 as an argument
- 7 Factorization of some small integers in a quadratic integer ring adjoining the square roots of −39, 39
- 8 Factorization of 39 in some quadratic integer rings
- 9 Representation of 39 in various bases
- 10 See also
Membership in core sequences
Odd numbers | ..., 33, 35, 37, 39, 41, 43, 45, ... | A005843 |
Semiprimes | ..., 34, 35, 38, 39, 46, 49, 51, ... | A001358 |
Composite numbers | ..., 35, 36, 38, 39, 40, 42, 44, ... | A002808 |
Deficient numbers | ..., 35, 37, 38, 39, 41, 43, 44, ... | A005100 |
Squarefree numbers | ..., 35, 37, 38, 39, 41, 42, 43, ... | A005117 |
Sequences pertaining to 39
Multiples of 39 | 0, 39, 78, 117, 156, 195, 234, 273, 312, 351, 390, 429, 468, ... | |
sequence starting at 39 | 39, 118, 59, 178, 89, 268, 134, 67, 202, 101, 304, 152, 76, 38, ... | A008878 |
Fermat pseudoprimes to base 39 | 38, 95, 133, 341, 1561, 1834, 1891, 2047, 2101, 2465, 3053, 3439, ... | A020167 |
Partitions of 39
PLACEHOLDER
Roots and powers of 39
PLACEHOLDER
Logarithms and 39th powers
REMARKS
TABLE
Values for number theoretic functions with 39 as an argument
TABLE GOES HERE
Factorization of some small integers in a quadratic integer ring adjoining the square roots of −39, 39
REMARKS GO HERE
TABLE GOES HERE
MORE REMARKS
FACTORIZATION OF IDEALS
Factorization of 39 in some quadratic integer rings
PLACEHOLDER
TABLE GOES HERE
Representation of 39 in various bases
Base | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
Representation | 100111 | 1101 | 211 | 122 | 101 | 52 | 47 | 41 | 39 | 34 | 31 | 2B | 29 | 27 | 27 | 23 | 21 | 1I | 1J |
In base 10, we see that 39 is the smallest number of multiplicative persistence 3, since 3 × 9 = 27, 2 × 7 = 14 and 1 × 4 = 4.
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 |