Compare 640254 vs 640261

Property	640254	640261
Type	composite number	prime
Unique factors	4	1
Total factors	4	1
Prime factorization	2¹ × 3¹ × 17¹ × 6277¹	640261¹
Prime factorization	2 × 3 × 17 × 6277	640261
Divisors count	16	2
Divisors	1, 2, 3, 6, 17, 34, 51, 102, 6277, 12554, 18831, 37662, 106709, 213418, 320127, 640254	1, 640261
Number of properties	0	5
Additive primes		20363rd
Lucky primes		5980th
Primes		52100th
Sexy primes (1st member)		11288th
Twin primes (2nd member)		5636th
Roman numberals
Base 2	10011100010011111110₂	10011100010100000101₂
Base 3	1012112021010₃	1012112021101₃
Base 4	2130103332₄	2130110011₄
Base 5	130442004₅	130442021₅
Base 6	21420050₆	21420101₆
Base 7	5304426₇	5304436₇
Base 8	2342376₈	2342405₈
Base 9	1175233₉	1175241₉
Base 10	640254₁₀	640261₁₀
Base 11	3a803a₁₁	3a8046₁₁
Base 12	26a626₁₂	26a631₁₂
Base 13	195564₁₃	19556b₁₃
Base 14	129486₁₄	12948d₁₄
Base 15	c9a89₁₅	c9a91₁₅
Base 16	9c4fe₁₆	9c505₁₆