1. Numbers
  2. Compare 397 vs 407

Compare 397 vs 407

Property397407
Typeprimesemiprime
Unique factors12
Total factors12
Prime factorization3971111 × 371
Prime factorization39711 × 37
Divisors count24
Divisors1, 3971, 11, 37, 407
Number of properties81
Additive primes45th 
Cousin primes (1st member)22nd 
Cuban primes 18th 
Happy primes21st 
Isolated primes37th 
Left-truncatable primes31st 
Primes78th 
Pythagorean primes37th 
Semiprimes 128th
Roman numberalsCCCXCVIICDVII
Base 211000110121100101112
Base 311220131200023
Base 4120314121134
Base 53042531125
Base 61501615156
Base 71105711217
Base 861586278
Base 948195029
Base 103971040710
Base 113311134011
Base 122911229b12
Base 132471325413
Base 142051421114
Base 151b7151c215
Base 1618d1619716
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