Compare 681991 vs 681997

Property	681991	681997
Type	semiprime	prime
Unique factors	2	1
Total factors	2	1
Prime factorization	233¹ × 2927¹	681997¹
Prime factorization	233 × 2927	681997
Divisors count	4	2
Divisors	1, 233, 2927, 681991	1, 681997
Number of properties	1	3
Cousin primes (1st member)		5953rd
Isolated primes		43317th
Primes		55216th
Semiprimes	145708th
Roman numberals
Base 2	10100110100000000111₂	10100110100000001101₂
Base 3	1021122111221₃	1021122112011₃
Base 4	2212200013₄	2212200031₄
Base 5	133310431₅	133310442₅
Base 6	22341211₆	22341221₆
Base 7	5540212₇	5540221₇
Base 8	2464007₈	2464015₈
Base 9	1248457₉	1248464₉
Base 10	681991₁₀	681997₁₀
Base 11	426432₁₁	426438₁₁
Base 12	28a807₁₂	28a811₁₂
Base 13	1ab55b₁₃	1ab564₁₃
Base 14	13a779₁₄	13a781₁₄
Base 15	d7111₁₅	d7117₁₅
Base 16	a6807₁₆	a680d₁₆