Compare 121990 vs 121997

Property	121990	121997
Type	composite number	prime
Unique factors	4	1
Total factors	4	1
Prime factorization	2¹ × 5¹ × 11¹ × 1109¹	121997¹
Prime factorization	2 × 5 × 11 × 1109	121997
Divisors count	16	2
Divisors	1, 2, 5, 10, 11, 22, 55, 110, 1109, 2218, 5545, 11090, 12199, 24398, 60995, 121990	1, 121997
Number of properties	0	8
Additive primes		4722nd
Chen primes		4978th
Cousin primes (2nd member)		1430th
Isolated primes		8594th
Left-truncatable primes		348th
Primes		11475th
Pythagorean primes		5707th
Restricted left-truncatable primes		32nd
Roman numberals
Base 2	11101110010000110₂	11101110010001101₂
Base 3	20012100011₃	20012100102₃
Base 4	131302012₄	131302031₄
Base 5	12400430₅	12400442₅
Base 6	2340434₆	2340445₆
Base 7	1015441₇	1015451₇
Base 8	356206₈	356215₈
Base 9	205304₉	205312₉
Base 10	121990₁₀	121997₁₀
Base 11	83720₁₁	83727₁₁
Base 12	5a71a₁₂	5a725₁₂
Base 13	436ab₁₃	436b5₁₃
Base 14	32658₁₄	32661₁₄
Base 15	2622a₁₅	26232₁₅
Base 16	1dc86₁₆	1dc8d₁₆