| ||||
|---|---|---|---|---|
| Cardinal | one hundred forty-two thousand eight hundred fifty-seven | |||
| Ordinal | 142857th (one hundred forty-two thousand eight hundred fifty-seventh) | |||
| Factorization | 33 × 11 × 13 × 37 | |||
| Divisors | 1, 3, 9, 11, 13, 27, 33, 37, 39, 99, 111, 117, 143, 297, 333, 351, 407, 429, 481, 999, 1221, 1287, 1443, 3663, 3861, 4329, 5291, 10989, 12987, 15873, 47619, 142857 | |||
| Greek numeral | ͵βωνζ´ | |||
| Roman numeral | CXLMMDCCCLVII | |||
| Binary | 1000101110000010012 | |||
| Ternary | 210202220003 | |||
| Senary | 30212136 | |||
| Octal | 4270118 | |||
| Duodecimal | 6A80912 | |||
| Hexadecimal | 22E0916 | |||
142,857 is the natural number following 142,856 and preceding 142,858. It is a Kaprekar number.[1]
142857, the six repeating digits of 1/7 (0.142857), is the best-known cyclic number in base 10.[2][3][4][5] If it is multiplied by 2, 3, 4, 5, or 6, the answer will be a cyclic permutation of itself, and will correspond to the repeating digits of 2/7, 3/7, 4/7, 5/7, or 6/7 respectively.
- ^ "Sloane's A006886: Kaprekar numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-03.
- ^ "Cyclic number". The Internet Encyclopedia of Science. Archived from the original on 2007-09-29.
- ^ Ecker, Michael W. (March 1983). "The Alluring Lore of Cyclic Numbers". The Two-Year College Mathematics Journal. 14 (2): 105–109. doi:10.2307/3026586. JSTOR 3026586.
- ^ "Cyclic number". PlanetMath. Archived from the original on 2007-07-14.
- ^ Hogan, Kathryn (August 2005). "Go figure (cyclic numbers)". Australian Doctor. Archived from the original on 2007-12-24.