Compare 681985 vs 681997

Property	681985	681997
Type	semiprime	prime
Unique factors	2	1
Total factors	2	1
Prime factorization	5¹ × 136397¹	681997¹
Prime factorization	5 × 136397	681997
Divisors count	4	2
Divisors	1, 5, 136397, 681985	1, 681997
Number of properties	1	3
Cousin primes (1st member)		5953rd
Isolated primes		43317th
Primes		55216th
Semiprimes	145707th
Roman numberals
Base 2	10100110100000000001₂	10100110100000001101₂
Base 3	1021122111201₃	1021122112011₃
Base 4	2212200001₄	2212200031₄
Base 5	133310420₅	133310442₅
Base 6	22341201₆	22341221₆
Base 7	5540203₇	5540221₇
Base 8	2464001₈	2464015₈
Base 9	1248451₉	1248464₉
Base 10	681985₁₀	681997₁₀
Base 11	426427₁₁	426438₁₁
Base 12	28a801₁₂	28a811₁₂
Base 13	1ab555₁₃	1ab564₁₃
Base 14	13a773₁₄	13a781₁₄
Base 15	d710a₁₅	d7117₁₅
Base 16	a6801₁₆	a680d₁₆