Compare 61988 vs 61991

Property	61988	61991
Type	composite number	prime
Unique factors	2	1
Total factors	3	1
Prime factorization	2² × 15497¹	61991¹
Prime factorization	2 × 2 × 15497	61991
Divisors count	6	2
Divisors	1, 2, 4, 15497, 30994, 61988	1, 61991
Number of properties	0	5
Chen primes		2860th
Cousin primes (2nd member)		826th
Isolated primes		4579th
Primes		6232nd
Sophie germain primes		796th
Roman numberals
Base 2	1111001000100100₂	1111001000100111₂
Base 3	10011000212₃	10011000222₃
Base 4	33020210₄	33020213₄
Base 5	3440423₅	3440431₅
Base 6	1154552₆	1154555₆
Base 7	345503₇	345506₇
Base 8	171044₈	171047₈
Base 9	104025₉	104028₉
Base 10	61988₁₀	61991₁₀
Base 11	42633₁₁	42636₁₁
Base 12	2ba58₁₂	2ba5b₁₂
Base 13	222a4₁₃	222a7₁₃
Base 14	1883a₁₄	1883d₁₄
Base 15	13578₁₅	1357b₁₅
Base 16	f224₁₆	f227₁₆