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220

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220 is an integer.

Membership in core sequences

Even numbers ..., 214, 216, 218, 220, 222, 224, 226, ... A005843
Composite numbers ..., 217, 218, 219, 220, 221, 222, 224, ... A002808
Abundant numbers ..., 208, 210, 216, 220, 222, 224, 228, ... A005101
Tetrahedral numbers ..., 84, 120, 165, 220, 286, 364, 455, ... A000292

Sequences pertaining to 220

Multiples of 220 220, 440, 660, 880, 1100, 1320, 1540, 1760, 1980, 2200, 2420, 2640, ...
Divisors of 220 1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220 A018339
sequence starting at 97 97, 292, 146, 73, 220, 110, 55, 166, 83, 250, 125, 376, 188, 94, 47, ... A008873

Partitions of 220

There are 21248279009367 partitions of 220.

The Goldbach representations of 220 are 197 + 23 = 191 + 29 = 179 + 41 = 173 + 47 = 167 + 53 = 149 + 71 = 137 + 83 = 131 + 89 = 113 + 107 = 220.

Roots and powers of 220

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

TABLE GOES HERE

Values for number theoretic functions with 220 as an argument

TABLE GOES HERE

Factorization of 220 in some quadratic integer rings

REMARKS GO HERE

TABLE GOES HERE

Representation of 220 in various bases

TABLE GOES HERE

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