Compare 640121 vs 640139

Property	640121	640139
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	640121¹	640139¹
Prime factorization	640121	640139
Divisors count	2	2
Divisors	1, 640121	1, 640139
Number of properties	4	4
Additive primes		20356th
Chen primes	20382nd	20383rd
Isolated primes	40823rd	40825th
Primes	52086th	52088th
Sexy primes (1st member)	11286th
Roman numberals
Base 2	10011100010001111001₂	10011100010010001011₂
Base 3	1012112002012₃	1012112002212₃
Base 4	2130101321₄	2130102023₄
Base 5	130440441₅	130441024₅
Base 6	21415305₆	21415335₆
Base 7	5304146₇	5304203₇
Base 8	2342171₈	2342213₈
Base 9	1175065₉	1175085₉
Base 10	640121₁₀	640139₁₀
Base 11	3a7a29₁₁	3a7a45₁₁
Base 12	26a535₁₂	26a54b₁₂
Base 13	195491₁₃	1954a6₁₃
Base 14	1293cd₁₄	129403₁₄
Base 15	c99eb₁₅	c9a0e₁₅
Base 16	9c479₁₆	9c48b₁₆