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75

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This article is under construction.            

Please do not rely on any information it contains.            


75 is an integer, the number of orderings of four objects with ties allowed.

Membership in core sequences

Odd numbers ..., 69, 71, 73, 75, 77, 79, 81, ... A005843
Composite numbers ..., 70, 72, 74, 75, 76, 77, 78, ... A002808
Deficient numbers ..., 71, 73, 74, 75, 76, 77, 79, ... A005100
Lucky numbers ..., 67, 69, 73, 75, 79, 87, 93, ... A000959
Loeschian numbers ..., 64, 67, 73, 75, 76, 79, 81, ... A003136
Fubini numbers 1, 1, 3, 13, 75, 541, 4683, ... A000670

Sequences pertaining to 75

Multiples of 75 75, 150, 225, 300, 375, 450, 525, 600, 675, 750, 825, 900, 975, 1050, ...
sequence beginning at 75 75, 226, 113, 340, 170, 85, 256, 128, 64, 32, 16, 8, 4, 2, 1, 4, 2, 1, ... A258056

Partitions of 75

[FINISH WRITING]

Roots and powers of 75

In the table below, irrational numbers are given truncated to eight decimal places.

TABLE GOES HERE

Values for number theoretic functions with 75 as an argument

TABLE GOES HERE

Factorization of 75 in some quadratic integer rings

PLACEHOLDER

TABLE GOES HERE

Representation of 75 in various bases

Base 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Representation 1001011 2220 1023 250 203 135 113 83 75 69 63 5A 55 50 4B 47 43 3I 3F

See also

Some integers
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

References