Compare 15 vs 63

Property1563
Typesemiprimecomposite number
Unique factors22
Total factors23
Prime factorization31 × 5132 × 71
Prime factorization3 × 53 × 3 × 7
Divisors count46
Divisors1, 3, 5, 151, 3, 7, 9, 21, 63
Number of properties10
Semiprimes6th 
Roman numberalsXVLXIII
Base 2111121111112
Base 3120321003
Base 43343334
Base 53052235
Base 62361436
Base 72171207
Base 8178778
Base 9169709
Base 1015106310
Base 1114115811
Base 1213125312
Base 1312134b13
Base 1411144714
Base 1510154315
Base 16f163f16
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