Compare 839 vs 840

Property	839	840
Type	prime	composite number
Unique factors	1	4
Total factors	1	6
Prime factorization	839¹	2³ × 3¹ × 5¹ × 7¹
Prime factorization	839	2 × 2 × 2 × 3 × 5 × 7
Divisors count	2	32
Divisors	1, 839	1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840
Number of properties	4	0
Chen primes	100th
Isolated primes	81st
Primes	146th
Safe primes	22nd
Roman numberals	DCCCXXXIX	DCCCXL
Base 2	1101000111₂	1101001000₂
Base 3	1011002₃	1011010₃
Base 4	31013₄	31020₄
Base 5	11324₅	11330₅
Base 6	3515₆	3520₆
Base 7	2306₇	2310₇
Base 8	1507₈	1510₈
Base 9	1132₉	1133₉
Base 10	839₁₀	840₁₀
Base 11	6a3₁₁	6a4₁₁
Base 12	59b₁₂	5a0₁₂
Base 13	4c7₁₃	4c8₁₃
Base 14	43d₁₄	440₁₄
Base 15	3ae₁₅	3b0₁₅
Base 16	347₁₆	348₁₆