66 (sixty-six) is the natural number following 65 and preceding 67.
| ||||
|---|---|---|---|---|
| Cardinal | sixty-six | |||
| Ordinal | 66th (sixty-sixth) | |||
| Factorization | 2 × 3 × 11 | |||
| Divisors | 1, 2, 3, 6, 11, 22, 33, 66 | |||
| Greek numeral | ΞϚ´ | |||
| Roman numeral | LXVI, lxvi | |||
| Binary | 10000102 | |||
| Ternary | 21103 | |||
| Senary | 1506 | |||
| Octal | 1028 | |||
| Duodecimal | 5612 | |||
| Hexadecimal | 4216 | |||
In mathematics
edit66 is a sphenic number, a semiperfect number,[1] and a Erdős–Woods number.[2] It is also the 11th triangular number[3] and the 6th hexagonal number.[4]
In computing
edit66 (more specifically 66.667) megahertz (MHz) is a common divisor for the front side bus (FSB) speed, overall central processing unit (CPU) speed, and base bus speed. On a Core 2 CPU, and a Core 2 motherboard, the FSB is 1066 MHz (~16 × 66 MHz), the memory speed is usually 666.67 MHz (~10 × 66 MHz), and the processor speed ranges from 1.86 gigahertz (GHz) (~66 MHz × 28) to 2.93 GHz (~66 MHz × 44), in 266 MHz (~66 MHz × 4) increments.
In motor vehicle transportation
edit
- The designation of the historic U.S. Route 66, dubbed the "Mother Road" by novelist John Steinbeck, and other roads.
References
edit- ↑ Sloane, N. J. A. (ed.). "Sequence A007304 (Sphenic numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ↑ Sloane, N. J. A. (ed.). "Sequence A059756 (Erdős-Woods numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ↑ Sloane, N. J. A. (ed.). "Sequence A000217 (Triangular numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ↑ Sloane, N. J. A. (ed.). "Sequence A000384 (Hexagonal numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
External links
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Media related to 66 (number) at Wikimedia Commons
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