Compare 31223 vs 31228
| Property | 31223 | 31228 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 4 |
| Prime factorization | 312231 | 22 × 371 × 2111 |
| Prime factorization | 31223 | 2 × 2 × 37 × 211 |
| Divisors count | 2 | 12 |
| Divisors | 1, 31223 | 1, 2, 4, 37, 74, 148, 211, 422, 844, 7807, 15614, 31228 |
| Number of properties | 7 | 0 |
| Additive primes | 1521st | |
| Cousin primes (2nd member) | 480th | |
| Emirps | 672nd | |
| Isolated primes | 2401st | |
| Left-truncatable primes | 188th | |
| Long primes | 1276th | |
| Primes | 3364th | |
| Roman numberals | ||
| Base 2 | 1111001111101112 | 1111001111111002 |
| Base 3 | 11202111023 | 11202111213 |
| Base 4 | 132133134 | 132133304 |
| Base 5 | 14443435 | 14444035 |
| Base 6 | 4003156 | 4003246 |
| Base 7 | 1600137 | 1600217 |
| Base 8 | 747678 | 747748 |
| Base 9 | 467429 | 467479 |
| Base 10 | 3122310 | 3122810 |
| Base 11 | 2150511 | 2150a11 |
| Base 12 | 1609b12 | 160a412 |
| Base 13 | 1129a13 | 112a213 |
| Base 14 | b54314 | b54814 |
| Base 15 | 93b815 | 93bd15 |
| Base 16 | 79f716 | 79fc16 |