Compare 21128 vs 21139

Property	21128	21139
Type	composite number	prime
Unique factors	3	1
Total factors	5	1
Prime factorization	2³ × 19¹ × 139¹	21139¹
Prime factorization	2 × 2 × 2 × 19 × 139	21139
Divisors count	16	2
Divisors	1, 2, 4, 8, 19, 38, 76, 139, 152, 278, 556, 1112, 2641, 5282, 10564, 21128	1, 21139
Number of properties	0	5
Cousin primes (1st member)		360th
Good primes		266th
Isolated primes		1656th
Lucky primes		385th
Primes		2375th
Roman numberals
Base 2	101001010001000₂	101001010010011₂
Base 3	1001222112₃	1001222221₃
Base 4	11022020₄	11022103₄
Base 5	1134003₅	1134024₅
Base 6	241452₆	241511₆
Base 7	115412₇	115426₇
Base 8	51210₈	51223₈
Base 9	31875₉	31887₉
Base 10	21128₁₀	21139₁₀
Base 11	14968₁₁	14978₁₁
Base 12	10288₁₂	10297₁₂
Base 13	9803₁₃	9811₁₃
Base 14	79b2₁₄	79bd₁₄
Base 15	63d8₁₅	63e4₁₅
Base 16	5288₁₆	5293₁₆