Compare 639989 vs 639997

Property	639989	639997
Type	composite number	prime
Unique factors	3	1
Total factors	4	1
Prime factorization	7² × 37¹ × 353¹	639997¹
Prime factorization	7 × 7 × 37 × 353	639997
Divisors count	12	2
Divisors	1, 7, 37, 49, 259, 353, 1813, 2471, 13061, 17297, 91427, 639989	1, 639997
Number of properties	0	4
Additive primes		20349th
Isolated primes		40813th
Lucky primes		5977th
Primes		52074th
Roman numberals
Base 2	10011100001111110101₂	10011100001111111101₂
Base 3	1012111220022₃	1012111220121₃
Base 4	2130033311₄	2130033331₄
Base 5	130434424₅	130434442₅
Base 6	21414525₆	21414541₆
Base 7	5303600₇	5303611₇
Base 8	2341765₈	2341775₈
Base 9	1174808₉	1174817₉
Base 10	639989₁₀	639997₁₀
Base 11	3a7919₁₁	3a7926₁₁
Base 12	26a445₁₂	26a451₁₂
Base 13	1953bc₁₃	1953c7₁₃
Base 14	129337₁₄	129341₁₄
Base 15	c995e₁₅	c9967₁₅
Base 16	9c3f5₁₆	9c3fd₁₆