Compare 31220 vs 31223
| Property | 31220 | 31223 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 4 | 1 |
| Total factors | 5 | 1 |
| Prime factorization | 22 × 51 × 71 × 2231 | 312231 |
| Prime factorization | 2 × 2 × 5 × 7 × 223 | 31223 |
| Divisors count | 24 | 2 |
| Divisors | 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 223, 446, 892, 1115, 1561, 2230, 3122, 4460, 6244, 7805, 15610, 31220 | 1, 31223 |
| Number of properties | 0 | 7 |
| 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 | 1111001111101002 | 1111001111101112 |
| Base 3 | 11202110223 | 11202111023 |
| Base 4 | 132133104 | 132133134 |
| Base 5 | 14443405 | 14443435 |
| Base 6 | 4003126 | 4003156 |
| Base 7 | 1600107 | 1600137 |
| Base 8 | 747648 | 747678 |
| Base 9 | 467389 | 467429 |
| Base 10 | 3122010 | 3122310 |
| Base 11 | 2150211 | 2150511 |
| Base 12 | 1609812 | 1609b12 |
| Base 13 | 1129713 | 1129a13 |
| Base 14 | b54014 | b54314 |
| Base 15 | 93b515 | 93b815 |
| Base 16 | 79f416 | 79f716 |