Compare 151 vs 1531
| Property | 151 | 1531 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1511 | 15311 |
| Prime factorization | 151 | 1531 |
| Divisors count | 2 | 2 |
| Divisors | 1, 151 | 1, 1531 |
| Number of properties | 9 | 5 |
| Additive primes | 20th | |
| Centered decagonal primes | 5th | 13th |
| Isolated primes | 143rd | |
| Long primes | 91st | |
| Lucky primes | 11th | |
| Multiplicative primes | 11th | |
| Palindromic primes | 8th | |
| Primes | 36th | 242nd |
| Sexy primes (1st member) | 21st | |
| Sexy prime triplets (1st member) | 12th | |
| Twin primes (2nd member) | 12th | |
| Ulam primes | 22nd | |
| Roman numberals | CLI | MDXXXI |
| Base 2 | 100101112 | 101111110112 |
| Base 3 | 121213 | 20022013 |
| Base 4 | 21134 | 1133234 |
| Base 5 | 11015 | 221115 |
| Base 6 | 4116 | 110316 |
| Base 7 | 3047 | 43157 |
| Base 8 | 2278 | 27738 |
| Base 9 | 1779 | 20819 |
| Base 10 | 15110 | 153110 |
| Base 11 | 12811 | 117211 |
| Base 12 | 10712 | a7712 |
| Base 13 | b813 | 90a13 |
| Base 14 | ab14 | 7b514 |
| Base 15 | a115 | 6c115 |
| Base 16 | 9716 | 5fb16 |