Compare 21387 vs 21390

Property	21387	21390
Type	semiprime	composite number
Unique factors	2	5
Total factors	2	5
Prime factorization	3¹ × 7129¹	2¹ × 3¹ × 5¹ × 23¹ × 31¹
Prime factorization	3 × 7129	2 × 3 × 5 × 23 × 31
Divisors count	4	32
Divisors	1, 3, 7129, 21387	1, 2, 3, 5, 6, 10, 15, 23, 30, 31, 46, 62, 69, 93, 115, 138, 155, 186, 230, 310, 345, 465, 690, 713, 930, 1426, 2139, 3565, 4278, 7130, 10695, 21390
Number of properties	1	0
Semiprimes	5419th
Roman numberals
Base 2	101001110001011₂	101001110001110₂
Base 3	1002100010₃	1002100020₃
Base 4	11032023₄	11032032₄
Base 5	1141022₅	1141030₅
Base 6	243003₆	243010₆
Base 7	116232₇	116235₇
Base 8	51613₈	51616₈
Base 9	32303₉	32306₉
Base 10	21387₁₀	21390₁₀
Base 11	15083₁₁	15086₁₁
Base 12	10463₁₂	10466₁₂
Base 13	9972₁₃	9975₁₃
Base 14	7b19₁₄	7b1c₁₄
Base 15	650c₁₅	6510₁₅
Base 16	538b₁₆	538e₁₆