Compare 145138 vs 145139
| Property | 145138 | 145139 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 21 × 72 × 14811 | 1451391 |
| Prime factorization | 2 × 7 × 7 × 1481 | 145139 |
| Divisors count | 12 | 2 |
| Divisors | 1, 2, 7, 14, 49, 98, 1481, 2962, 10367, 20734, 72569, 145138 | 1, 145139 |
| Number of properties | 0 | 9 |
| Additive primes | 5549th | |
| Chen primes | 5773rd | |
| Happy primes | 2107th | |
| Harmonic primes | 5044th | |
| Isolated primes | 10134th | |
| Long primes | 5004th | |
| Primes | 13435th | |
| Sexy primes (2nd member) | 3299th | |
| Ulam primes | 952nd | |
| Roman numberals | ||
| Base 2 | 1000110110111100102 | 1000110110111100112 |
| Base 3 | 211010021113 | 211010021123 |
| Base 4 | 2031233024 | 2031233034 |
| Base 5 | 141210235 | 141210245 |
| Base 6 | 30355346 | 30355356 |
| Base 7 | 11431007 | 11431017 |
| Base 8 | 4333628 | 4333638 |
| Base 9 | 2410749 | 2410759 |
| Base 10 | 14513810 | 14513910 |
| Base 11 | 9a05411 | 9a05511 |
| Base 12 | 6bbaa12 | 6bbab12 |
| Base 13 | 510a613 | 510a713 |
| Base 14 | 3ac7014 | 3ac7114 |
| Base 15 | 2d00d15 | 2d00e15 |
| Base 16 | 236f216 | 236f316 |