Compare 639988 vs 639997

Property	639988	639997
Type	composite number	prime
Unique factors	3	1
Total factors	4	1
Prime factorization	2² × 193¹ × 829¹	639997¹
Prime factorization	2 × 2 × 193 × 829	639997
Divisors count	12	2
Divisors	1, 2, 4, 193, 386, 772, 829, 1658, 3316, 159997, 319994, 639988	1, 639997
Number of properties	0	4
Additive primes		20349th
Isolated primes		40813th
Lucky primes		5977th
Primes		52074th
Roman numberals
Base 2	10011100001111110100₂	10011100001111111101₂
Base 3	1012111220021₃	1012111220121₃
Base 4	2130033310₄	2130033331₄
Base 5	130434423₅	130434442₅
Base 6	21414524₆	21414541₆
Base 7	5303566₇	5303611₇
Base 8	2341764₈	2341775₈
Base 9	1174807₉	1174817₉
Base 10	639988₁₀	639997₁₀
Base 11	3a7918₁₁	3a7926₁₁
Base 12	26a444₁₂	26a451₁₂
Base 13	1953bb₁₃	1953c7₁₃
Base 14	129336₁₄	129341₁₄
Base 15	c995d₁₅	c9967₁₅
Base 16	9c3f4₁₆	9c3fd₁₆