Compare 21247 vs 21256

Property	21247	21256
Type	prime	composite number
Unique factors	1	2
Total factors	1	4
Prime factorization	21247¹	2³ × 2657¹
Prime factorization	21247	2 × 2 × 2 × 2657
Divisors count	2	8
Divisors	1, 21247	1, 2, 4, 8, 2657, 5314, 10628, 21256
Number of properties	3	0
Isolated primes	1667th
Long primes	907th
Primes	2388th
Roman numberals
Base 2	101001011111111₂	101001100001000₂
Base 3	1002010221₃	1002011021₃
Base 4	11023333₄	11030020₄
Base 5	1134442₅	1140011₅
Base 6	242211₆	242224₆
Base 7	115642₇	115654₇
Base 8	51377₈	51410₈
Base 9	32127₉	32137₉
Base 10	21247₁₀	21256₁₀
Base 11	14a66₁₁	14a74₁₁
Base 12	10367₁₂	10374₁₂
Base 13	9895₁₃	98a1₁₃
Base 14	7a59₁₄	7a64₁₄
Base 15	6467₁₅	6471₁₅
Base 16	52ff₁₆	5308₁₆