142857

The number 142,857 is a Kaprekar number.

← 142856 142857 142858 →
List of numbers Integers ← 100 101 102 103 104 105 106 107 108 109
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	${\displaystyle {\stackrel {\iota \delta }{\mathrm {M} }}}$͵βωνζ´
Roman numeral	CXLMMDCCCLVII
Binary	1000101110000010012
Ternary	210202220003
Senary	30212136
Octal	4270118
Duodecimal	6A80912
Hexadecimal	22E0916

142857, the six repeating digits of 1/7 (0.142857), is the best-known cyclic number in base 10. 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.