Compare 990121 vs 990131

Property	990121	990131
Type	semiprime	semiprime
Unique factors	2	2
Total factors	2	2
Prime factorization	11¹ × 90011¹	17¹ × 58243¹
Prime factorization	11 × 90011	17 × 58243
Divisors count	4	4
Divisors	1, 11, 90011, 990121	1, 17, 58243, 990131
Number of properties	1	1
Semiprimes	208057th	208060th
Roman numberals
Base 2	11110001101110101001₂	11110001101110110011₂
Base 3	1212022012011₃	1212022012112₃
Base 4	3301232221₄	3301232303₄
Base 5	223140441₅	223141011₅
Base 6	33115521₆	33115535₆
Base 7	11262436₇	11262452₇
Base 8	3615651₈	3615663₈
Base 9	1768164₉	1768175₉
Base 10	990121₁₀	990131₁₀
Base 11	616990₁₁	61699a₁₁
Base 12	3b8ba1₁₂	3b8bab₁₂
Base 13	288892₁₃	28889c₁₃
Base 14	1bab8d₁₄	1bab99₁₄
Base 15	148581₁₅	14858b₁₅
Base 16	f1ba9₁₆	f1bb3₁₆