12 (tal)
12 ella tólv.
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|---|---|---|---|---|
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Talyvirlit — Heiltal | ||||
| Grundtal | tólv | |||
| Raðtal |
12 (tólvta) | |||
| Talskipan | duodecimal | |||
| Falditættir | 22× 3 | |||
| Deilarar | 1, 2, 3, 4, 6, 12 | |||
| Roman numeral | XII | |||
| Grikskt forstavilsi | dodeca- | |||
| Latínskt forstavilsi | duodeca- | |||
| Tveytalsskipan | 11002 | |||
| Trýskift | 1103 | |||
| Fýraskift | 304 | |||
| Quinary | 225 | |||
| Senary | 206 | |||
| Oktal | 148 | |||
| Tólvtal | 1012 | |||
| Sekstandatal | C16 | |||
| Vigesimal | C20 | |||
| Base 36 | C36 | |||
| Støddfrøðiligir eginleikar | |
| φ(12) = 4 | τ(12) = 6 |
| σ(12) = 28 | π(12) = 5 |
| μ(12) = 0 | M(12) = -2 |
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