Compare 639840 vs 639851

Property	639840	639851
Type	composite number	prime
Unique factors	5	1
Total factors	9	1
Prime factorization	2⁵ × 3¹ × 5¹ × 31¹ × 43¹	639851¹
Prime factorization	2 × 2 × 2 × 2 × 2 × 3 × 5 × 31 × 43	639851
Divisors count	96	2
Divisors	1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 43, 48, 60, 62, 80, 86, 93, 96, 120, 124, 129, 155, 160, 172, 186, 215, 240, 248, 258, 310, 344, 372, 430, 465, 480, 496, 516, 620, 645, 688, 744, 860, 930, 992, 1032, 1240, 1290, 1333, 1376, 1488, 1720, 1860, 2064, 2480, 2580, 2666, 2976, 3440, 3720, 3999, 4128, 4960, 5160, 5332, 6665, 6880, 7440, 7998, 10320, 10664, 13330, 14880, 15996, 19995, 20640, 21328, 26660, 31992, 39990, 42656, 53320, 63984, 79980, 106640, 127968, 159960, 213280, 319920, 639840	1, 639851
Number of properties	0	6
Chen primes		20371st
Primes		52064th
Prime triplets (1st member)		2062nd
Sexy primes (1st member)		11284th
Sophie germain primes		5305th
Twin primes (1st member)		5631st
Roman numberals
Base 2	10011100001101100000₂	10011100001101101011₂
Base 3	1012111200210₃	1012111201012₃
Base 4	2130031200₄	2130031223₄
Base 5	130433330₅	130433401₅
Base 6	21414120₆	21414135₆
Base 7	5303265₇	5303312₇
Base 8	2341540₈	2341553₈
Base 9	1174623₉	1174635₉
Base 10	639840₁₀	639851₁₀
Base 11	3a77a3₁₁	3a7803₁₁
Base 12	26a340₁₂	26a34b₁₂
Base 13	195306₁₃	195314₁₃
Base 14	12926c₁₄	129279₁₄
Base 15	c98b0₁₅	c98bb₁₅
Base 16	9c360₁₆	9c36b₁₆