Compare 639997 vs 640008

Property	639997	640008
Type	prime	composite number
Unique factors	1	3
Total factors	1	7
Prime factorization	639997¹	2³ × 3³ × 2963¹
Prime factorization	639997	2 × 2 × 2 × 3 × 3 × 3 × 2963
Divisors count	2	32
Divisors	1, 639997	1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 2963, 5926, 8889, 11852, 17778, 23704, 26667, 35556, 53334, 71112, 80001, 106668, 160002, 213336, 320004, 640008
Number of properties	4	0
Additive primes	20349th
Isolated primes	40813th
Lucky primes	5977th
Primes	52074th
Roman numberals
Base 2	10011100001111111101₂	10011100010000001000₂
Base 3	1012111220121₃	1012111221000₃
Base 4	2130033331₄	2130100020₄
Base 5	130434442₅	130440013₅
Base 6	21414541₆	21415000₆
Base 7	5303611₇	5303625₇
Base 8	2341775₈	2342010₈
Base 9	1174817₉	1174830₉
Base 10	639997₁₀	640008₁₀
Base 11	3a7926₁₁	3a7936₁₁
Base 12	26a451₁₂	26a460₁₂
Base 13	1953c7₁₃	195405₁₃
Base 14	129341₁₄	12934c₁₄
Base 15	c9967₁₅	c9973₁₅
Base 16	9c3fd₁₆	9c408₁₆