Compare 638977 vs 638988

Property	638977	638988
Type	prime	composite number
Unique factors	1	4
Total factors	1	5
Prime factorization	638977¹	2² × 3¹ × 7¹ × 7607¹
Prime factorization	638977	2 × 2 × 3 × 7 × 7607
Divisors count	2	24
Divisors	1, 638977	1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 7607, 15214, 22821, 30428, 45642, 53249, 91284, 106498, 159747, 212996, 319494, 638988
Number of properties	5	0
Isolated primes	40753rd
Lucky primes	5967th
Primes	52000th
Proth primes	194th
Sexy primes (2nd member)	11267th
Roman numberals
Base 2	10011100000000000001₂	10011100000000001100₂
Base 3	1012110111211₃	1012110112020₃
Base 4	2130000001₄	2130000030₄
Base 5	130421402₅	130421423₅
Base 6	21410121₆	21410140₆
Base 7	5300623₇	5300640₇
Base 8	2340001₈	2340014₈
Base 9	1173454₉	1173466₉
Base 10	638977₁₀	638988₁₀
Base 11	3a7089₁₁	3a7099₁₁
Base 12	269941₁₂	269950₁₂
Base 13	194ac1₁₃	194acc₁₃
Base 14	128c13₁₄	128c20₁₄
Base 15	c94d7₁₅	c94e3₁₅
Base 16	9c001₁₆	9c00c₁₆