Compare 999947 vs 999959

Property999947999959
Typesemiprimeprime
Unique factors21
Total factors21
Prime factorization131 × 7691919999591
Prime factorization13 × 76919999959
Divisors count42
Divisors1, 13, 76919, 9999471, 999959
Number of properties16
Chen primes 29949th
Good primes 2668th
Primes 78495th
Safe primes 4324th
Semiprimes210027th 
Sexy primes (2nd member) 16386th
Twin primes (1st member) 8169th
Roman numberals  
Base 2111101000010000010112111101000010000101112
Base 31212210200002312122102001123
Base 43310020023433100201134
Base 522344424252234443145
Base 6332332156332332356
Base 7113332047113332227
Base 83641013836410278
Base 91783602917836159
Base 109999471099995910
Base 116233031162331411
Base 1240280b1240281b12
Base 132901b0132901bc13
Base 141c05ab141c05b914
Base 1514b4321514b43e15
Base 16f420b16f421716
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