Compare 121987 vs 121997
Property | 121987 | 121997 |
---|---|---|
Type | semiprime | prime |
Unique factors | 2 | 1 |
Total factors | 2 | 1 |
Prime factorization | 1991 × 6131 | 1219971 |
Prime factorization | 199 × 613 | 121997 |
Divisors count | 4 | 2 |
Divisors | 1, 199, 613, 121987 | 1, 121997 |
Number of properties | 1 | 8 |
Additive primes | 4722nd | |
Chen primes | 4978th | |
Cousin primes (2nd member) | 1430th | |
Isolated primes | 8594th | |
Left-truncatable primes | 348th | |
Primes | 11475th | |
Pythagorean primes | 5707th | |
Restricted left-truncatable primes | 32nd | |
Semiprimes | 28270th | |
Roman numberals | ||
Base 2 | 111011100100000112 | 111011100100011012 |
Base 3 | 200121000013 | 200121001023 |
Base 4 | 1313020034 | 1313020314 |
Base 5 | 124004225 | 124004425 |
Base 6 | 23404316 | 23404456 |
Base 7 | 10154357 | 10154517 |
Base 8 | 3562038 | 3562158 |
Base 9 | 2053019 | 2053129 |
Base 10 | 12198710 | 12199710 |
Base 11 | 8371811 | 8372711 |
Base 12 | 5a71712 | 5a72512 |
Base 13 | 436a813 | 436b513 |
Base 14 | 3265514 | 3266114 |
Base 15 | 2622715 | 2623215 |
Base 16 | 1dc8316 | 1dc8d16 |